Rebel 300 (2020) - Motorcycle Honda - Free user manual and instructions

Type	Motorcycle
Engine displacement	286 cc (17.4 cu-in)
Engine type	4-stroke, single cylinder, liquid-cooled
Bore x stroke	76.0 x 63.0 mm
Compression ratio	10.7:1
Fuel system	PGM-FI (programmed fuel injection)
Transmission	6-speed, constant mesh
Final drive	Chain
Front tire	130/90-16M/C 67H tubeless
Rear tire	150/80-16M/C 71H tubeless
Brakes front	Single disc
Brakes rear	Single disc
ABS	Optional (CMX300A models)
Overall length	86.8 in (2,205 mm)
Overall width	32.3 in (820 mm)
Overall height	42.9 in (1,090 mm)
Wheelbase	58.7 in (1,490 mm)
Seat height	Approx. 27.2 in (690 mm)
Curb weight	364-370 lb (165-168 kg) depending on model
Fuel tank capacity	2.96 US gal (11.2 L)
Fuel type	Unleaded gasoline, min. 86 PON
Battery	YTZ8V, 12V-7 Ah (10 HR)
Spark plug	SIMR8A9 (NGK), iridium
Engine oil capacity (with filter)	1.6 US qt (1.5 L)
Coolant capacity	1.15 US qt (1.09 L)
Maintenance schedule	Every 600 mi (1,000 km) for chain; oil change every 4,000 mi (6,400 km)

Frequently Asked Questions - Rebel 300 (2020) Honda

What type of gasoline should I use in my Rebel 300?

Use unleaded gasoline with a minimum Pump Octane Number (PON) of 86. Do not use leaded gasoline or fuels with high alcohol content.

How do I start the engine?

Ensure the engine stop switch is in the Run position, turn the ignition to ON, shift to neutral (N indicator on), then press the start button with the throttle completely closed.

What is the recommended tire pressure?

Both front and rear tires should be inflated to 29 psi (200 kPa) when cold.

How often should I change the engine oil?

Change the engine oil every 4,000 miles (6,400 km) or one year, whichever comes first. Replace the oil filter every other oil change.

Can I carry a passenger?

Only if the optional Honda Genuine Passenger Seat Kit is installed, which includes a passenger seat, seat strap, and footpegs. Without it, carry a passenger is prohibited.

How do I adjust the drive chain slack?

Park on level ground, loosen the rear axle nut and lock nuts, then turn both adjusting bolts equally until slack is 1 to 1 3/8 in (25-35 mm). Tighten lock nuts to 15 lbf·ft and axle nut to 65 lbf·ft.

What does the ABS indicator mean?

If the ABS indicator stays on or flashes while riding, the anti-lock system may have a fault. The brakes still work as conventional but without ABS. Have the vehicle inspected by your dealer.

How do I check the coolant level?

With the engine cold and the vehicle upright, check the reserve tank level between the UPPER and LOWER marks. Add recommended coolant if below LOWER.

What type of engine oil should I use?

Use SAE 10W-30 oil that meets API SG or higher (excluding energy conserving) and JASO T 903 MA standard. Honda GN4 or equivalent is recommended.

How do I reset the tripmeter?

Press and hold the SET button while the tripmeter (TRIP A or B) is displayed to reset both tripmeter and average fuel mileage for that trip.

USER MANUAL Rebel 300 (2020) Honda

Congratulations on your purchase of a new Honda vehicle. Your selection of a Honda makes you part of a worldwide family of satisfied customers who appreciate Honda's reputation for building quality into every product.

To ensure your safety and riding pleasure:

• Read this owner's manual carefully.
  ● Follow all recommendations and procedures contained in this manual.
  ● Pay close attention to safety messages contained in this manual and on the vehicle.

To protect your investment, we urge you to take responsibility for keeping your vehicle well serviced and maintained. Also, observe the break-in guidelines, and always perform the pre-ride inspection and other periodic checks in this manual.

When service is required, remember that your Honda dealer knows your vehicle best. If you have the required mechanical "know-how" and tools, you can purchase an official Honda Service Manual to help you perform many maintenance and repair tasks. P. 133

Read the warranty information thoroughly so that you understand the warranty coverage and that you are aware of your rights and responsibilities. ➤ P. 134

You may also want to visit our website at www.powersports.honda.com.

Canada www.honda.ca.

Happy riding!

A Few Words About Safety

Your safety, and the safety of others, is very important. Operating this vehicle safely is an important responsibility.

To help you make informed decisions about safety, we have provided operating procedures and other information on safety labels and in this manual. This information alerts you to potential hazards that could hurt you or others.

Of course, it is not practical or possible to warn you about all hazards associated with operating or maintaining a vehicle. You must use your own good judgment.

You will find important safety information in a variety of forms, including:

● Safety labels on the vehicle
● Safety Messages preceded by a safety alert symbol and one of three signal words:
DANGER, WARNING, or CAUTION.

These signal words mean:

DANGER

You WILL be KILLED or SERIOUSLY HURT if you don't follow instructions.

WARNING

You CAN be KILLED or SERIOUSLY HURT if you don't follow instructions.

CAUTION

You CAN be HURT if you don't follow instructions.

Other important information is provided under the following titles:

Information to help you avoid damage to your vehicle, other property, or the environment.

Vehicle Safety

This section contains important information for safe riding of your vehicle.

Please read this section carefully.

Safety Guidelines....P. 3

Safety Labels....P. 7

Safety Precautions.... P. 9

Riding Precautions P. 11

Accessories & Modifications.... P. 15

Loading....P. 16

Safety Guidelines

Follow these guidelines to enhance your safety:

● Perform all routine and regular inspections specified in this manual.
- Stop the engine and keep sparks and flame away before filling the fuel tank.
- Do not run the engine in enclosed or partly enclosed areas. Carbon monoxide in exhaust gases is toxic and can kill you.

Always Wear a Helmet

It's a proven fact: helmets and protective apparel significantly reduce the number and severity of head and other injuries. So always wear an approved helmet and protective apparel. P. 9

Before Riding

Model not equipped with Optional Passenger Seat Kit

Make sure that you are physically fit, mentally focused and free of alcohol and drugs. Check that you are wearing an approved helmet and protective apparel.

Model equipped with Optional Passenger Seat Kit

Make sure that you are physically fit, mentally focused and free of alcohol and drugs. Check that you and your passenger are both wearing an approved helmet and protective apparel. Instruct your passenger on holding onto the seat strap or your waist, leaning with you in turns, and keeping their feet on the footpegs, even when the vehicle is stopped.

Safety Guidelines

Take Time to Learn & Practice

Even if you have ridden other vehicles, practice riding in a safe area to become familiar with how this vehicle works and handles, and to become accustomed to the vehicle's size and weight.

We recommend that all riders take a certified course approved by the Motorcycle Safety Foundation (MSF). New riders should start with the basic course, and even experienced riders will find the advanced course beneficial. For information about the MSF training course nearest you, call the national toll-free number: [phone].

USA Other riding tips can be found in the You and Your Motorcycle Riding Tips booklet that came with your vehicle.

Ride Defensively

Always pay attention to other vehicles around you, and do not assume that other drivers see you. Be prepared to stop quickly or perform an evasive maneuver.

Make Yourself Easy to See

Make yourself more visible, especially at night, by wearing bright reflective clothing, positioning yourself so other drivers can see you, signaling before turning or changing lanes, and using your horn when necessary.

Ride within Your Limits

Never ride beyond your personal abilities or faster than conditions warrant. Fatigue and inattention can impair your ability to use good judgment and ride safely.

Never Carry a passenger

Model not equipped with Optional Passenger Seat Kit

There are no handholds, seat, or footrests to carry a passenger.

Do not carry a passenger unless you have purchased and installed the Honda Genuine Accessory Passenger Seat Kit, or equivalent parts specifically designed for this vehicle, which must include the passenger seat, seat strap, footpegs, and the mounting hardware.

Don't Drink and Ride

Alcohol and riding don't mix. Even one alcoholic drink can reduce your ability to respond to changing conditions, and your reaction time gets worse with every additional drink. Don't drink and ride, and don't let your friends drink and ride either.

Keep Your Honda in Safe Condition

It's important to keep your vehicle properly maintained and in safe riding condition. Inspect your vehicle before every ride and perform all recommended maintenance. Never exceed load limits (P. 16), and do not modify your vehicle or install accessories that would make your vehicle unsafe (P. 15).

If You are Involved in a Crash

Personal safety is your first priority. If you or anyone else has been injured, take time to assess the severity of the injuries and whether it is safe to continue riding. Call for emergency assistance if needed. Also follow applicable laws and regulations if another person or vehicle is involved in the crash.

Safety Guidelines

If you decide to continue riding, first turn the ignition switch to the OFF position, and evaluate the condition of your vehicle. Inspect for fluid leaks, check the tightness of critical nuts and bolts, and check the handlebar, control levers, brakes, and wheels. Ride slowly and cautiously. Your vehicle may have suffered damage that is not immediately apparent. Have your vehicle thoroughly checked at a qualified service facility as soon as possible.

Carbon Monoxide Hazard

Exhaust contains poisonous carbon monoxide, a colorless, odorless gas. Breathing carbon monoxide can cause loss of consciousness and may lead to death.

If you run the engine in confined or even partly enclosed area, the air you breathe could contain a dangerous amount of carbon monoxide.

Never run your vehicle inside a garage or other enclosure.

WARNING

Running the engine of your vehicle while in an enclosed or even partially enclosed area can cause a rapid build-up of toxic carbon monoxide gas.

Breathing this colorless, odorless gas can quickly cause unconsciousness and lead to death.

Only run your vehicle's engine when it is located in a well ventilated area outdoors.

Safety Labels

Safety Labels

Safety and information labels on your vehicle provide important safety information and may warn you of potential hazards that could cause serious injury. Read these labels carefully and don't remove them. If a label comes off or becomes hard to read, contact your dealer for a replacement.

Model not equipped with Optional Passenger Seat Kit shown DANGER WARNUNG 危険 ▶ NEVER OPEN WHEN HOT. Hut coolant will scald you. ▶ N'OUVREZ PAS QUAND CHAUD ▶ NICHT BEI HEISSEW MOTOR OFFEN ▶ 患い時あかないで下さい。 ▶ 高温時,請勿打开 1.1

Continued

Safety Labels

Model not equipped with Optional Passenger Seat Kit shown For your protection, always wear your helmet while riding. Read the owner's manual carefully. WARNING Improper loading can cause a crash and you may be seriously hurt or killed. See "Load Limits and Guidelines" in your Owner's Manual for complete instructions. TIRE INFORMATION Cold tire pressures Up to maximum weight capacity Up to 90kg(200lbs) load Tire size Min. recommend tire center tread depth. Maximum weight capacity xPa kgf/cm² psi Front 200 2.00 29 Rear 200 2.00 29 Front 200 2.00 29 Rear 200 2.00 29 Front 130/80-16M/C 67H Rear 150/80-16M/C 71H Front 1.5mm (0.06in.) Rear 2.0mm (0.06in.) DRIVE CHAIN Keep chain adjusted and lubricated 30 mm (1 1/4 in.) Freeplay Freeplay Read owner's manual.

Safety Precautions

• Ride cautiously and keep your hands on the handlebar and feet on the footpegs.
• Model equipped with Optional Passenger Seat Kit Keep passenger's hands onto the seat strap or your waist, passenger's feet on the footpegs while riding.
• Model not equipped with Optional Passenger Seat Always consider the safety of other drivers and riders.
• Model equipped with Optional Passenger Seat Kit Always consider the safety of your passenger, as well as other drivers and riders.

Protective Apparel

Model not equipped with Optional Passenger Seat Kit

Make sure that you are wearing an approved helmet, eye protection, and high-visibility protective clothing. Ride defensively in response to weather and road conditions.

Model equipped with Optional Passenger Seat Kit

Make sure that you and any passenger are wearing an approved helmet, eye protection, and high-visibility protective clothing. Ride defensively in response to weather and road conditions.

1 Helmet

Should be safety-standard certified, high-visibility, and correct size for your head

• Must fit comfortably but securely, with the chin strap fastened.
  ● Face shield with unobstructed field of vision or other approved eye protection

Safety Precautions

USA Look for a DOT (Department of

Transportation) certification label on any helmet you buy.

WARNING

Not wearing a helmet increases the chance of serious injury or death in a crash.

Model not equipped with Optional Passenger Seat Kit

Make sure that you always wear an approved helmet and protective apparel.

Model equipped with Optional Passenger Seat Kit

Make sure that you and any passenger always wear an approved helmet and protective apparel.

Gloves

Full-finger leather gloves with high abrasion resistance

Boots or Riding Shoes

Sturdy boots with non-slip soles and ankle protection

Jacket and Pants

Protective, highly visible, long-sleeved jacket and durable long pants for riding (or a protective suit)

Riding Precautions

Break-in Period

During the first 300 miles (500 km) of running, follow these guidelines to ensure your vehicle's future reliability and performance.

• Avoid full-throttle starts and rapid acceleration.
  ● Avoid hard braking and rapid down-shifts.
• Ride conservatively.

Brakes

Observe the following guidelines:

• Avoid excessively hard braking and downshifting.
  ▶ Sudden braking can reduce the vehicle's stability.
  ▶ Where possible, reduce speed before turning; otherwise you risk sliding out.

● Exercise caution on low traction surfaces.

The tires slip more easily on such surfaces and braking distances are longer.

● Avoid continuous braking.

▶ Repeated braking, such as when descending long, steep slopes can seriously overheat the brakes, reducing their effectiveness. Use engine braking with intermittent use of the brakes to reduce speed.

- For full braking effectiveness, operate both the front and rear brakes together.

Anti-lock Brake System (ABS)

CMX300A only

This model is equipped with an Anti-lock Brake System (ABS) designed to help prevent the brakes from locking up during hard braking.

● ABS does not reduce braking distance. In certain circumstances, ABS may result in a longer stopping distance.
● ABS does not function at speeds below 6 mph (10 km/h).
● The brake lever and pedal may recoil slightly when applying the brakes. This is normal.
● Always use the recommended front/rear tires and sprockets to ensure correct ABS operation.

Engine Braking

Engine braking helps slow your vehicle down when you release the throttle. For further slowing action, downshift to a lower gear. Use engine braking with intermittent use of the brakes to reduce speed when descending long, steep slopes.

Wet or Rainy Conditions

Road surfaces are slippery when wet, and wet brakes further reduce braking efficiency. Exercise extra caution when braking in wet conditions.

If the brakes get wet, apply the brakes while riding at low speed to help them dry.

Parking

● Park on a firm, level surface.
- If you must park on a slight incline or loose surface, park so that the vehicle cannot move or fall over.
● Make sure that high-temperature parts cannot come into contact with flammable materials.
- Do not touch the engine, muffler, brakes and other high-temperature parts until they cool down.
● To reduce the likelihood of theft, always lock the handlebar and remove the key when leaving the vehicle unattended.
Use of an anti-theft device is also recommended.

Parking with the Side Stand

1. Stop the engine.
2. Push the side stand down.
3. Slowly lean the vehicle to the left until its weight rests on the side stand.
4. Turn the handlebar fully to the left.
   ▶ Turning the handlebar to the right reduces stability and may cause the vehicle to fall.
5. Turn the ignition switch to the OFF position and remove the key.
6. Lock the steering. ➡ P. 38

Riding Precautions

Refueling and Fuel Guidelines

Follow these guidelines to protect the engine, fuel system and catalytic converter:

• Use only unleaded gasoline.
• Use recommended octane number. Using lower octane gasoline will result in decreased engine performance.
• Do not use fuels containing a high concentration of alcohol. ➤ P. 132
• Do not use stale or contaminated gasoline or an oil/gasoline mixture.
  ● Avoid getting dirt or water in the fuel tank.

Accessories & Modifications

We strongly advise that you do not add any accessories that were not specifically designed or approved for your vehicle by Honda or make modifications to your vehicle from its original design. Doing so can make it unsafe. Modifying your vehicle may also void your warranty and make your vehicle illegal to operate on public roads. Before deciding to install accessories on your vehicle be certain the modification is safe and legal.

WARNING

Improper accessories or modifications can cause a crash in which you can be seriously hurt or killed.

Follow all instructions in this owner's manual regarding accessories and modifications.

Do not pull a trailer with, or attach a sidecar to, your vehicle. Your vehicle was not designed for these attachments, and their use can seriously impair your vehicle's handling.

Loading

Loading

● Model not equipped with Optional Passenger Seat
Never carry a passenger. Your vehicle was not designed to carry a passenger.
- Carrying extra weight affects your vehicle's handling, braking and stability.
Always ride at a safe speed for the load you are carrying.
- Avoid carrying an excessive load and keep within specified load limits.
● Tie all luggage securely, evenly balanced and close to the center of the vehicle.
- Do not place objects near the lights or the muffler.

Maximum weight capacity ➤ P. 139

WARNING

Model not equipped with Optional Passenger Seat Kit

Overloading, improper loading or carrying a passenger can cause a crash and you can be seriously hurt or killed.

Model equipped with Optional Passenger Seat Kit

Overloading or improper loading can cause a crash and you can be seriously hurt or killed.

Follow all load limits and other loading guidelines in this manual.

Your vehicle comes from the factory with a single seat for operator only, but ratings capacity (subject to applicable weight ratings) to also carry a passenger with the purchase and installation of the optional Honda Genuine Accessory Passenger Seat Kit, or equivalent parts specifically designed for this vehicle.

Do not carry a passenger unless a passenger seat (with seat strap) and footpegs have been securely installed on your vehicle.

WARNING

Carrying a passenger without a properly designed and installed passenger seat and footpegs can result in serious injury or death to you and/or the passenger.

Never carry a passenger without first installing a passenger seat (with seat strap) and footpegs specifically designed for this vehicle. Further, never carry more than one passenger.

Loading

The vehicle GVWR, weight ratings and tire load capacities can be found on the vehicle. Single Seat as produced.

Single Seat

Optional Honda Genuine Accessory Passenger Seat Kit shown.

Passenger Seat Kit

BLANK PAGE

Parts Location

Model not equipped with Optional Passenger Seat Kit shown

Fuse box P.113 Battery P.67 Seat P.71 Front brake fluid reservoir P.84 Front brake lever Throttle grip P.95 Steering lock P.38 Side cover P.72 Engine oil fill cap P.76 Engine oil level inspection window P.76 Engine oil filter P.78 Rear brake pedal Rear brake fluid reservoir P.84 Rear suspension spring preload adjuster P.98

Fuse box P.113

Battery P.67

Seat P.71

Front brake fluid reservoir

P.84

Front brake lever

Throttle grip P.95

Steering lock P.38

Side cover P.72

Engine oil level inspection

window P.76

Engine oil filter P.78

Rear brake pedal

Rear brake fluid reservoir

P.84

Rear suspension spring

preload adjuster P.98

Clutch lever P.92 Ignition switch P.37 Spark plug P.73 Fuel fill cap P.42 Air cleaner P.80 Main fuse P.115 Tool P.43 Document bag P.44 Rear suspension spring preload adjuster P.98 Drive chain P.88 Coolant reserve tank P.82 Crankcase breather P.96 Engine oil drain bolt P.78 Side stand P.87 Shift lever P.41

Instruments

SEL button SET button 0:25 GEAR 0 mph TOTAL 311 mile

Display Check

When the ignition switch is turned to the ON position, initial animation will show. If any part of these displays does not come on when it should, have your dealer check for problems.

Speedometer 88:88 km/h mph GEAR 88 88 88 km/L/100km mlle / gal Clock (12-hour or 24-hour display) To set the clock: P.30 Odometer [TOTAL] & Tripmeter [TRIP A/B] & Average fuel mileage [AVG A/B] & Current fuel mileage & Reserve fuel consumption [RES] P.24 Gear position indicator The gear position is shown in the gear position indicator. ► "-" appears when the transmission is not shifted properly. Fuel gauge Remaining fuel when only 1st (E) segment starts flashing: approximately 0.58 US gal (2.2 L) If the fuel gauge indicator flashes in a repeat pattern or turns off: P.103 Continued 23 Operation Guide

Instruments (Continued)

Odometer [TOTAL] & Tripmeter [TRIP A/B] & Current fuel mileage & Average fuel mileage [AVG A/B] & Reserve fuel consumption [RES]

The SEL button switches between the odometer, tripmeter A, tripmeter B, average fuel mileage A, average fuel mileage B, current fuel mileage and reserve fuel consumption.

graph LR
    A["Reserve fuel consumption"] --> B["Odometer"]
    B --> C["Tripmeter A"]
    C --> D["Tripmeter B"]
    D --> E["Average fuel mileage A"]
    B --> F["Current fuel mileage"]
    F --> G["Average fuel mileage B"]
    G --> H["Tripmeter A"]
    H --> I["Tripmeter B"]
    I --> J["Average fuel mileage A"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#ffc,stroke:#333
    style F fill:#cff,stroke:#333
    style G fill:#ffc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#fcc,stroke:#333
    style J fill:#ffc,stroke:#333

When the 1st (E) segment of the fuel gauge starts flashing, the odometer, tripmeter A, tripmeter B, average fuel mileage A, average fuel mileage B or current fuel mileage switches to the reserve fuel consumption.

Odometer [TOTAL]

Total distance ridden. When “----” is displayed, go to your dealer for service.

Tripmeter [TRIP A/B]

Distance ridden since tripmeter was reset. When "----." is displayed, go to your dealer for service.

To reset the tripmeter:

P.27

Average fuel mileage [AVG A/B]

The average fuel mileage A will be based on tripmeter A. Displays the average fuel mileage A since tripmeter A was reset. The average fuel mileage B will be based on tripmeter B. Displays the average fuel mileage B since tripmeter B was reset. Display range: 0.0 to 299.9 mile/gal (L/100km or km/L)

• Initial display: “----.” is displayed.
• When the tripmeter A or B is reset: "----." is displayed.
• More than 299.9 mile/gal (L/100km or km/L) : "299.9" is displayed.

When "----." is displayed except for the above-mentioned cases, go to your dealer for service.

To reset the average fuel mileage:

P.27

Instruments (Continued)

Current fuel mileage

Displays the current instant fuel mileage. Display range: 0.0 to 299.9 mile/gal (L/100km or km/L)

• Initial display: "---.-" is displayed.
• When your speed is less than 4 mph (6 km/h): “---.” is displayed.
• More than 299.9 mile/gal (L/100km or km/L) : "299.9" is displayed.

When "----." is displayed except for the above-mentioned cases, go to your dealer for service.

Reserve fuel consumption [RES]

Displays the fuel consumption since the 1st (E) segment of the fuel gauge starts flashing.

When the 1st (E) segment of the fuel gauge starts flashing, the odometer, tripmeter A, tripmeter B, average fuel mileage A, average fuel mileage B or current fuel mileage switches to the reserve fuel consumption.

You should refill the tank as soon as possible. Display range: 0.0 to 99.9 gal (gallon) or 0.0 to 99.9 L (liters)

• Flashes from "0.0"
• More than 99.9 gal (gallon) or 99.9 L (liters) : "99.9" is displayed.

After refueling more than the reserve amount, the display returns to normal.

When “---.-” is displayed, go to your dealer for service.

To reset the tripmeter [TRIP A/B] and average fuel mileage [AVG A/B]

To reset the tripmeter A and average fuel mileage A together, press and hold the SET button while the tripmeter A or average fuel mileage A is displayed.

Tripmeter A TRIP 777 mile Average fuel mileage A AVG 400 mile / gal TRIP 800 mile TRIP AVG 1 mile / gal

When they are reset, reset display appears at each indication. Then, the display returns to the last selected indication.

graph TD
    A["TRIP A 0.0 mile"] --> B["TRIP A - - - mile / gal"]
    B --> C["AVG"]

Instruments (Continued)

To reset the tripmeter B and average fuel mileage B together, press and hold the SET button while the tripmeter B or average fuel mileage B is displayed.

When they are reset, reset display appears at each indication. Then, the display returns to the last selected indication.

graph TD
    A["TRIP B 0.0 mile"] --> B["TRIP B"]
    B --> C["AVG mIle / gal"]
    C --> D["Output"]

Display Setting

Following items can be changed sequentially.

• Time format setting
- Clock setting
• Backlight brightness adjustment
• Changing of speed and mileage unit
- Changing of fuel mileage meter unit (only when km unit system is selected)

graph TD
    A["Ordinary display"] --> B["Setting Mode"]
    B --> C["Time format setting"]
    C --> D["Clock setting"]
    D --> E["Backlight brightness adjustment"]
    E --> F["Changing of speed and mileage unit"]
    F --> G["Changing of fuel mileage meter unit (only when km unit system is selected)"]

→Press and hold SEL and SET buttons →Press the SET button

Instruments (Continued)

In addition, to move the ordinary display at display setting.

• The buttons is not pressed for about 30 seconds.
• Turn the ignition switch to the OFF position and then to the ON position.

1 Time format setting:

You can switch the time format between 12 hour format or 24 hour format.

1 Turn the ignition switch to the ON position.
2 Press and hold SEL and SET buttons until the current time format start flashing.

3 Press SEL button to select "12 hr" or "24 hr".

4 Press SET button. The time format is set, and then the display moves to the clock setting.

2 Clock setting:

1 Press SEL button until the desired hour is displayed.

▶ Press and hold SEL button to advance the hour quickly.

-2:34 → -12:34

2 Press SET button. The minute digits start flashing.

-12:34 → 12:34

3 Press SEL button until the desired minute is displayed.

▶ Press and hold SEL button to advance the minute quickly.

12:34 → 12:54

4 Press SET button. The clock is set, and then the display moves to the backlight brightness adjustment.

Instruments (Continued)

3 Backlight brightness adjustment:

You can adjust the brightness to one of five levels.

1 Press SEL button. The brightness is switched.

graph TD
    A["Input"] --> B["Step 1"]
    B --> C["Step 2"]
    C --> D["Step 3"]
    D --> E["Output"]
    E --> F["Feedback Loop"]
    F --> G["Step 4"]
    G --> H["Step 5"]

2 Press SET button. The backlight is set, and then the display moves the changing of the speed and mileage unit.

4 Changing of speed and mileage unit:

1 Press SEL button to select either "mph" and "mile" or "km/h" and "km".

graph LR
    A["8 mph"] --> B["8 km/h"]
    style A fill:#f9f,stroke:#333
    style B fill:#bbf,stroke:#333

2 When the "km/h" for speed and "km" for mileage are selected

Press SET button. The speed and mileage unit is set, and then the display moves to the changing of fuel mileage meter unit.

When the "mph" for speed and "mile" for mileage are selected

Press SET button. The speed and mileage unit is set, and then the display returns to the ordinary display.

5 Changing of fuel mileage meter unit:

1 Press SEL button to select "km/L" or "L/100km".

graph TD
    A["km/L"] --> B["L/100km"]

2 Press SET button. The fuel mileage meter unit is set, and then the display moves to the ordinary display.

The established setting can also be set by turning the ignition switch to the OFF position.

The control is automatically switched from the setting mode to the ordinary display if the button is not pressed for about 30 seconds. Even in this case, established setting is maintained.

Indicators

If one of these indicators does not come on when it should, have your dealer check for problems.

High coolant temperature indicator If it comes on while riding: P.101

Right turn signal indicator

PGM-FI (Programmed Fuel Injection) malfunction indicator lamp (MIL)

Comes on briefly when the ignition switch is turned to the ON position with the engine stop switch in the ○ (Run) position.

If it comes on while engine is running:

P.102

10:25 GEAR 0 mph TOTAL 3 : 1 mile Left turn signal indicator

High beam indicator

N Neutral indicator

Comes on when the transmission is in Neutral.

ABS (Anti-lock Brake System) indicator

CMX300A only

Comes on when the ignition switch is turned to the ON position. Goes off when your speed reaches approximately 6 mph (10 km/h).

If it comes on while riding: P.102

Switches

Turn signal switch Pressing the switch turns the turn signal off. Horn button Hazard Switchable in the ON

Engine stop switch

Should normally remain in the

○ (Run) position.

In an emergency, switch to the

(Stop) position (the starter motor will not operate) to stop the engine.

Hazard switch

Switchable when the ignition switch is in the ON position.

Headlight dimmer/ Passing light control switch

• ≡: High beam
- Low beam
• Passes the high beam headlight.

Start button

Ignition switch

Switches the electrical system on/off.

▶ Key can be removed when in the OFF position.

ON

Turns electrical system on for starting/riding.

OFF

Turns engine off.

Switches (Continued)

Steering Lock

Lock the steering when parking to help prevent theft.

A U-shaped wheel lock or similar device is also recommended.

1 Push 2 Turn Ignition key Steering lock

Locking

1 Turn the handlebar all the way to the left.
2 Insert the ignition key in the steering lock.
3 Push the ignition key down, and turn it 180 degrees clockwise.
Jiggle the handlebar if the lock is difficult to engage.
4 Remove the ignition key.

Unlocking

Insert the ignition key, push it in, and turn it 180 degrees counterclockwise.

Starting the Engine

Start your engine using the following procedure, regardless of whether the engine is cold or warm.

Diagram of a scooter seatbelt with numbered parts and close-up detail view

NOTICE

• If the engine does not start within 5 seconds, turn the ignition switch to the OFF position and wait 10 seconds before trying to start the engine again to recover battery voltage.
• Extended fast idling and revving the engine can damage the engine, and the exhaust system.

1 Make sure the engine stop switch is in the Q (Run) position.
② Turn the ignition switch to the ON position.
3 Shift the transmission to Neutral (N indicator comes on). Alternatively, pull in the clutch lever to start your vehicle with the transmission in gear so long as the side stand is raised.
4 Press the start button with the throttle completely closed.

Starting the Engine (Continued)

If you cannot start the engine:

With the throttle slightly open (about 1/8 in (3 mm), without freeplay) while starting the engine.

About 1/8 in (3 mm), without freeplay

Technical line drawing of a cylindrical mechanical part with directional arrows indicating force or movement (no text or symbols)

If the engine does not start:

① Open the throttle fully and press the start button for 5 seconds.
② Repeat the normal starting procedure.
③ If the engine starts, open the throttle slightly if idling is unstable.
④ If the engine does not start, wait 10 seconds before trying steps ① & ② again.

If Engine Will Not Start

Shifting Gears

Your vehicle transmission has 6 forward gears in a one-down, five-up shift pattern.

6 5 4 3 2 N 1

If you put the vehicle in gear with the side stand down, the engine will shut off.

Recommended Shift Points

Shifting Up

From 1st to 2nd 12 mph (20 km/h)

From 2nd to 3rd 19 mph (30 km/h)

From 3rd to 4th 25 mph (40 km/h)

From 4th to 5th 31 mph (50 km/h)

From 5th to 6th 37 mph (60 km/h)

Shifting Down

From 6th to 5th 28 mph (45 km/h)

From 5th to 4th 22 mph (35 km/h)

From 4th to 3rd 16 mph (25 km/h)

NOTICE

Improper shifting can damage the engine, transmission, and drive train. Also, coasting or towing the vehicle for long distances with the engine off can damage the transmission.

Refueling

Ignition key

Lock cover Level plate Fuel fill cap

Do not fill with fuel above the level plate.

Fuel type: Unleaded gasoline only

Recommended fuel octane number:

Pump Octane Number (PON) 86 or higher.

Tank capacity: 2.96 US gal (11.2 L)

Refueling and Fuel Guidelines

Opening the Fuel Fill Cap

Open the lock cover, insert the ignition key, and turn it clockwise to open the fuel fill cap.

Closing the Fuel Fill Cap

1 After refueling, push the fuel fill cap closed until it locks.
2 Remove the ignition key and close the lock cover.
The ignition key cannot be removed if the fuel fill cap is not locked.

WARNING

Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel.

• Stop the engine, and keep heat, sparks, and flame away.
  • Handle fuel only outdoors.
  • Wipe up spills immediately.

Storage Equipment

Tool

The 5 mm Hex wrench is stored behind the right side cover.

To remove the 5 mm Hex wrench, loosen the screw with a coin.

Screw 5 mm Hex wrench

Removing the Right Side Cover

The tools are stored on the underside of the seat.

Store the tools and secure them with the rubber strap as shown.

USA model Rubber strap Document bag Tools Canada model Document bag Tools

Storage Equipment (Continued)

The fuse puller is stored on the battery cover under the seat.

Fuse puller

Removing the Seat

Document Bag

The document bag is stored on the underside of the seat.

Store the document bag and secure it with the rubber strap as shown.

Canada model shown

Document bag Rubber strap

Maintenance

Please read "Importance of Maintenance" and "Maintenance Fundamentals" carefully before attempting any maintenance. Refer to "Specifications" for service data.

An optional larger tool kit may be available.

Check with your Honda dealer's parts department.

Importance of Maintenance ...... P. 46

Maintenance Schedule.... P. 48

Maintenance Record.... P. 51

Maintenance Fundamentals ...... P. 52

Removing & Installing Body Components.. P. 67

Battery....P. 67

Clip.... P. 70

Harness Band Clip.... P. 70

Seat P. 71

Side Cover P. 72

Spark Plug P. 73

Engine Oil....P. 76

Air Cleaner.....P. 80

Coolant....P. 82

Brakes....P. 84

Side Stand P. 87

Drive Chain....P. 88

Clutch P. 92

Throttle P. 95

Crankcase Breather P. 96

Other Adjustments.... P. 97

Adjusting the Headlight Aim P. 97

Adjusting the Rear Suspension ...... P. 98

Importance of Maintenance

Importance of Maintenance

Keeping your vehicle well-maintained is absolutely essential to your safety and to protect your investment, obtain maximum performance, avoid breakdowns, and reduce air pollution. Maintenance is the owner's responsibility. Be sure to inspect your vehicle before each ride, and perform the periodic checks specified in the Maintenance Schedule.

→ P. 48

WARNING

Improperly maintaining your vehicle or failing to correct a problem before you ride can cause a crash in which you can be seriously hurt or killed.

Always follow the inspection and maintenance recommendations and schedules in this owner's manual.

For information about the exhaust emission and noise emission requirements of the U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and the Environment and Climate Change Canada (ECCC). P. 127

USA

Maintenance, replacement or repair of the emission control devices and systems may be performed by any vehicle repair establishment or individual using parts that are "certified" to EPA standards.

Importance of Maintenance

Maintenance Safety

Always read the maintenance instructions before you begin each task, and make sure that you have the tools, parts, and skills required. We cannot warn you of every conceivable hazard that can arise in performing maintenance. Only you can decide whether or not you should perform a given task.

Follow these guidelines when performing maintenance.

• Stop the engine and remove the key.
• Place your vehicle on a firm, level surface using the side stand or a maintenance stand to provide support.
• Allow the engine, muffler, brakes, and other high-temperature parts to cool before servicing as you can get burned.
• Run the engine only when instructed, and do so in a well-ventilated area.

Maintenance Schedule

The maintenance schedule specifies the maintenance requirements necessary to ensure safe, dependable performance, and proper emission control.

Maintenance work should be performed in accordance with Honda's standards and specifications by properly trained and equipped technicians. Your dealer meets all of these requirements. All scheduled maintenance is considered a normal owner operating cost and will be charged to you by your dealer. Keeping an accurate maintenance record will help ensure your vehicle is properly maintained.

→ P. 51

Make sure whoever performs the scheduled maintenance completes the maintenance record. Retain all service documents. If you sell your vehicle, these service documents should be transferred with the vehicle to the new owner.

Items

Frequency*1

× 1,000 mi 0.

6 4 8 12

16 20

24

Regular Replace

Refer to page

× 1,000 km 1

0 6.4

12.8 19.2

25.6

32.0

38.4

Emission-Related Items

Fuel Line -

I

I

I

Throttle Operation 95

I

I

I

Air Cleaner*2

R

R

80

Crankcase Breather*3

C

C

C

C

C

C

96

Spark Plug

Every 16,000 mi (25,600 km):

I

73

Every 32,000 mi (51,200 km):

R

Valve Clearance -

I

Engine Oil 1 Year 78

R

R

R

R

Engine Oil Filter 78

R

R

Engine Idle Speed -

I

I

I

Radiator Coolant*5

I

I

I

3 Years 82

Cooling System

I

I

I

-

Secondary Air Supply System

I

-

Evaporative Emission Control System*4

I

-

Maintenance Level

: Intermediate. We recommend service by your dealer, unless you have the necessary tools and are mechanically skilled.
Procedures are provided in an official Honda Service Manual (P. 133).

X : Technical. In the interest of safety, have your vehicle serviced by your dealer.

Maintenance Legend

1 : Inspect (clean, adjust, lubricate, or replace, if necessary)
: Replace
L : Lubricate
c : Clean

Maintenance Schedule

Items

Frequency*1

× 1,000 mi 0

6 4 8 12

16 20

24

Regular Replace

Refer to page

× 1,000 km

1.0 6.4

12.8 19.2

25.6 32

2.0 38.4

Non-Emission-Related Items

Drive Chain

Every 600 mi (1,000 km): [ ] [ ]

88

Brake Fluid*5

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

2 Years 84

Brake Pads Wear 85

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

Brake System 52

[ ]

[ ]

[ ]

Brake Light Switch 86

[ ]

[ ]

[ ]

Headlight Aim 97

[ ]

[ ]

[ ]

Clutch System 92

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

Side Stand 87

[ ]

[ ]

[ ]

Suspension -

\

[ ]

[ ]

[ ]

Nuts, Bolts, Fasteners

\

[ ]

[ ]

[ ]

-

Wheels/Tires

X

[ ]

[ ]

[ ]

62

Steering Head Bearings

X

[ ]

[ ]

[ ]

-

Notes:

1: At higher odometer reading, repeat at the frequency interval established here.
2: Service more frequently when riding in unusually wet or dusty areas.
*3 : Service more frequently when riding in rain or at full throttle.
*4:50 STATE (meets California).
*5 : Replacement requires mechanical skill.

Maintenance Record

Distance Odometer Date Performed By: Notes
600 miles (1,000 km)
4,000 miles (6,400 km)
8,000 miles (12,800 km)
12,000 miles (19,200 km)
16,000 miles (25,600 km)
20,000 miles (32,000 km)
24,000 miles (38,400 km)
28,000 miles (44,800 km)
32,000 miles (51,200 km)
36,000 miles (57,600 km)
40,000 miles (64,000 km)
44,000 miles (70,400 km)
48,000 miles (76,800 km)
52,000 miles (83,200 km)
56,000 miles (89,600 km)
60,000 miles (96,000 km)
64,000 miles (102,400 km)
68,000 miles (108,800 km)

Maintenance Fundamentals

Pre-ride Inspection

To ensure safety, it is your responsibility to perform a pre-ride inspection and make sure that any problem you find is corrected. A pre-ride inspection is a must, not only for safety, but because having a breakdown, or even a flat tire, can be a major inconvenience.

Check the following items before you get on your vehicle:

● Tire tread wear and air pressures are within limits. ➤ P. 62
● Lights, horn, and turn signals operate normally.
- Check the condition of the drive chain. Adjust slack and lubricate as needed. ➡ P. 60

Model not equipped with Optional Passenger Seat Kit

Check the following items if you are carrying a cargo:

Model equipped with Optional Passenger Seat Kit

Check the following items if you are carrying a passenger or cargo:

● Combined weight is within load limits.
→ P. 139
● Cargo is secured properly.
● Suspension is adjusted to suit load. ➡ P. 98

Check the following items after you get on your vehicle:

● Throttle action moves smoothly without binding. ➡ P. 95
● Brake lever and pedal operate normally.
- Check the fuel level and refuel when needed. ➞ P. 14, ➞ P. 42
● Engine stop switch functions properly. → P. 36

Maintenance Fundamentals

Check the following items at regular intervals:

● Oil level is between the upper and lower level marks. ➡ P. 76
● Brake fluid level is Front: above the LOWER level mark. ➤ P. 84 Rear: between the UPPER and LOWER level marks. ➤ P. 84
● Engine coolant level is between the UPPER and LOWER level marks. ➤ P. 82
- Side stand functions properly. P. 87

Maintenance Fundamentals

Periodic Checks

You should also perform other periodic maintenance checks at least once a month regardless of how often you ride, or more often if you ride frequently.

Also, check the odometer reading against the Maintenance Schedule and perform all maintenance that is due. P. 48

Tires and wheels	Check the air pressure (P. 62), examine tread for wear and damage (P. 62), and check the wheels for damage.
Fluid levels	Check the engine oil level (P. 76), engine coolant level (P. 82), and brake fluid level (P. 84).
Lights	Check that the headlight, brake light, taillight, license plate light, turn signals and position lights are working properly.
Controls	Check the freeplay of the clutch lever (P. 93) and throttle grip (P. 95).
Drive chain	Check the slack (P. 88), adjust the slack (P. 89), and lubricate (P. 61) as needed.
Fuses Check that you have a full supply of spare fuses.
Nuts & bolts Check the major nuts and bolts, and tighten as needed.

Replacing Parts

Always use Honda Genuine Parts or their equivalents to ensure reliability and safety.

When ordering colored components, specify the model name, color, and code mentioned on the color label.

The color label is attached to the battery box under the seat. P. 71

Color label

WARNING

Installing non-Honda parts may make your vehicle unsafe and cause a crash in which you can be seriously hurt or killed.

Always use Honda Genuine Parts or equivalents that have been designed and approved for your vehicle.

Maintenance Fundamentals

Battery

Your vehicle has a maintenance-free type battery. You do not have to check the battery electrolyte level or add distilled water. Clean the battery terminals if they become dirty or corroded.

Do not remove the battery cap seals. There is no need to remove the cap when charging.

NOTICE

An improperly disposed of battery can be harmful to the environment and human health. Always confirm local regulations for proper battery disposal instruction.

What to do in an emergency

If any of the following occur, immediately see your doctor.

● Electrolyte splashes into your eyes:
▶ Wash your eyes repeatedly with cool water for at least 15 minutes. Using water under pressure can damage your eyes.

● Electrolyte splashes onto your skin:
▶ Remove affected clothing and wash your skin thoroughly using water.
● Electrolyte splashes into your mouth:
▶ Rinse mouth thoroughly with water, and do not swallow.

WARNING

The battery gives off explosive hydrogen gas during normal operation.

A spark or flame can cause the battery to explode with enough force to kill or seriously hurt you.

Wear protective clothing and a face shield, or have a skilled mechanic do the battery servicing.

WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds. Wash your hands after handling.

Cleaning the Battery Terminals

1. Remove the battery. ➡ P. 67
2. If the terminals are starting to corrode and are coated with a white substance, wash with warm water and wipe clean.
3. If the terminals are heavily corroded, clean and polish the terminals with a wire brush or sandpaper. Wear safety glasses.

Illustration of a hand holding a battery with a brush touching its side (no text or symbols)

1. After cleaning, reinstall the battery.

The battery has a limited life span. Consult your dealer about when you should replace the battery. Always replace the battery with another maintenance-free battery of the same type.

Charging

If you use electrical accessories that drain the battery or you do not ride frequently, we recommend that you charge the battery every 30 days using a charger designed specifically for your Honda, which can be purchased from your dealer. Read the information that came with your battery charger and follow the instructions on the battery. Avoid using an automobile-type battery charger, as these can overheat a motorcycle battery and cause permanent damage.

Make sure the ignition switch is in the OFF position before charging the battery.

NOTICE

Improper charging can damage the battery. If you can't charge the battery or it appears unable to hold a charge, contact your dealer.

Maintenance Fundamentals

NOTICE

Jump starting using an automobile battery can damage your vehicle's electrical system and is not recommended. Bump starting is also not recommended.

NOTICE

Installing non-Honda electrical accessories can overload the electrical system, discharging the battery and possibly damaging the system.

Fuses

Fuses protect the electrical circuits on your vehicle. If something electrical on your vehicle stops working, check for and replace any blown fuses. P. 113

Inspecting and Replacing Fuses

Turn the ignition switch to the OFF position to remove and inspect fuses. If a fuse is blown, replace with a fuse of the same rating. For fuse ratings, see "Specifications." P. 141

Blown fuse

NOTICE

Replacing a fuse with one that has a higher rating greatly increases the chance of damage to the electrical system.

If a fuse fails repeatedly, you likely have an electrical fault. Have your vehicle inspected by your dealer.

Maintenance Fundamentals

Engine Oil

Engine oil consumption varies and oil quality deteriorates according to riding conditions and time elapsed.

Check the engine oil level regularly, and add the recommended engine oil if necessary. Dirty oil or old oil should be changed as soon as possible.

Selecting the Engine Oil

For recommended engine oil, see "Specifications." P. 140

If you use non-Honda engine oil, check the label to make sure that the oil satisfies all of the following standards:

● JASO T 903 standard: MA
● SAE standard: 10W-30
● API classification ^*3 : SG or higher

^*1 . The JASO T 903 standard is an index for engine oils for 4-stroke motorcycle engines. There are two classes: MA and MB. For example, the following label shows the MA classification.

MA Oil code Oil classification

^2 . The SAE standard grades oils by their viscosity.
^3 . The API classification specifies the quality and performance rating of engine oils. Use SG or higher oils, excluding oils marked as "Energy Conserving" or "Resource Conserving" on the circular API service symbol.

API SERVICE &Y SAE 10W-30 Resource conserving API SERVICE &Z SAE 10W-30 ENERGY CONSERVING API SERVICE &U SAE 10W-30

Not recommended Recommended

Maintenance Fundamentals

Brake Fluid

Do not add or replace brake fluid, except in an emergency. Use only fresh brake fluid from a sealed container. If you do add fluid, have the brake system serviced by your dealer as soon as possible.

NOTICE

Brake fluid can damage plastic and painted surfaces. Wipe up spills immediately and wash thoroughly.

Recommended brake fluid:

Honda DOT 4 Brake Fluid or equivalent

WARNING

Clean filler cap before removing. Use only DOT 4 fluid from a sealed container.

Drive Chain

The drive chain must be inspected and lubricated regularly. Inspect the chain more frequently if you often ride on bad roads, ride at high speed, or ride with repeated fast acceleration. P. 88

If the chain does not move smoothly, makes strange noises, has damaged rollers, has loose pins, has missing O-rings, or kinks, have the chain inspected by your dealer.

Also inspect the drive sprocket and driven sprocket. If either has worn or damaged teeth, have the sprocket replaced by your dealer.

Normal (GOOD)

Worn (REPLACE)

Damaged (REPLACE)

Maintenance Fundamentals

NOTICE

Use of a new chain with worn sprockets will cause rapid chain wear.

Cleaning and Lubricating

After inspecting the slack, clean the chain and sprockets while rotating the rear wheel. Use a dry cloth with chain cleaner designed specifically for O-ring chains, or neutral detergent. Use a soft brush if the chain is dirty. After cleaning, wipe dry and lubricate with the recommended lubricant.

Recommended lubricant:

Pro Honda HP Chain Lube or equivalent

Illustration of a hand holding a chain with a cable, no text or symbols present

Do not use a steam cleaner, a high pressure cleaner, a wire brush, volatile solvent such as gasoline and benzene, abrasive cleaner, chain cleaner or lubricant NOT designed specifically for O-ring chains as these can damage the rubber O-ring seals.

Avoid getting lubricant on the brakes or tires. Avoid applying excess chain lubricant to prevent spray onto your clothes and the vehicle.

Recommended Coolant

Pro Honda HP Coolant is a pre-mixed solution of antifreeze and distilled water.

Concentration:

50% antifreeze and 50% distilled water

A concentration of antifreeze below 40% will not provide proper corrosion and cold temperature protection.

A concentration of up to 60% will provide better protection in colder climates.

Maintenance Fundamentals

NOTICE

Using coolant not specified for aluminum engines or tap/mineral water can cause corrosion.

Crankcase Breather

Service more frequently when riding in rain, at full throttle, or after the vehicle is washed or overturned. Service if the deposit level can be seen in the transparent section of the drain tube.

If the drain tube overflows, the air filter may become contaminated with engine oil causing poor engine performance. ➤ P. 96

Tires (Inspecting/Replacing)

| Checking the Air Pressure

Visually inspect your tires and use an air pressure gauge to measure the air pressure at least once a month or any time you think the tires look low. Always check air pressure when your tires are cold.

Inspecting for Damage

Diagram of a plant cell with two circular insets showing internal structures (no text or labels)

Inspect the tires for cuts, slits, or cracks that exposes fabric or cords, or nails or other foreign objects embedded in the side of the tire or the tread.

Also inspect for any unusual bumps or bulges in the side walls of the tires.

Inspecting for Abnormal Wear

Diagram of a mechanical or electrical component with internal hatched pattern and curved lines (no text or symbols)

Inspect the tires for signs of abnormal wear on the contact surface.

Inspecting Tread Depth

Inspect the tread wear indicators. If they become visible, replace the tires immediately. For safe riding, you should replace the tires when the minimum tread depth is reached.

or TWI Wear indicator location mark

WARNING

Riding on tires that are excessively worn or improperly inflated can cause a crash in which you can be seriously hurt or killed.

Follow all instructions in this owner's manual regarding tire inflation and maintenance.

Maintenance Fundamentals

Have your tires replaced by your dealer.

For recommended tires, air pressure and minimum tread depth, see "Specifications."

→ P. 140

Follow these guidelines whenever you replace tires.

• Use the recommended tires or equivalents of the same size, construction, speed rating, and load range.
  ● Have the wheel balanced with Honda Genuine balance weights or equivalent after the tire is installed.
• Do not install a tube inside a tubeless tire on this vehicle. Excessive heat build-up can cause the tube to burst.
• Use only tubeless tires on this vehicle. The rims are designed for tubeless tires, and during hard acceleration or braking, a tube-type tire could slip on the rim and cause the tire to rapidly deflate.

WARNING

Installing improper tires on your vehicle can adversely affect handling and stability, and can cause a crash in which you can be seriously hurt or killed.

Always use the size and type of tires recommended in this owner's manual.

Tire Service Life

The service life of your tires is dependent on many factors, including, but not limited to, riding habits, road conditions, vehicle loading, tire air pressure, maintenance history, speed, and environmental conditions (even when the tires are not in use).

In addition to your regular inspections and maintenance, it is recommended that you have annual inspections performed once the tires reach 5 years old. It is also recommended that all tires be removed from service after 10 years from the date of manufacture, regardless of their condition or state of wear.

The last four digits of the TIN (tire identification number) indicate the date of manufacture.

Tire Identification Number (TIN)

The tire identification number (TIN) is a group of numbers and letters located on the sidewall of the tire.

① ② ③

DOT XXXX XXXX 22 09

DOT: This indicates that the tire meets all requirements of the U.S. Department of Transportation.

① XXXX: Factory code
② XXXX: Tire type code
③ 22 09: Date of manufacture (week & year). Example: week 22 in year 09.

Tire Labeling Example

MANUFACTURER P47 TIRE NAKE

Tire identification number (TIN)

Maintenance Fundamentals

Air Cleaner

This vehicle is equipped with a viscous type air cleaner element which cannot be cleaned with compressed air or otherwise without degrading its performance.

If the filter becomes dirty, replace it with a new one.

Removing & Installing Body Components

Battery

Removal

Make sure the ignition switch is in the OFF position.

1. Remove the seat. ➡ P. 71

2. Remove the data link connector while pressing its tab from the battery cover.

3. CMX300A only

Remove the air check connector while pressing its tab from the battery cover.

1. Remove the connector holder and relay holders from the battery cover.

2. Release the wire harness from the guide on the battery cover.

Relay holders Connector holder Wire harness Battery cover Guide Data link connector Tab CMX300A only Tab Air check connector

Removing & Installing Body Components ▶ Battery

1. Remove the clips. ➡ P. 70
2. Disconnect the negative ⊖ terminal from the battery.
3. Pull up the battery cover.

Clips Battery cover Negative terminal

1. Disconnect the positive ⊕ terminal from the battery.
2. Remove the battery taking care not to drop the terminal nuts.

Battery Positive terminal

Removing & Installing Body Components ▶ Battery

Installation

Install the parts in the reverse order of removal. Always connect the positive terminal first. Make sure that bolts and nuts are tight.

Make sure the clock information is correct after the battery is reconnected. P. 30 For proper handling of the battery, see "Maintenance Fundamentals." P. 56 "Battery Goes Dead." P. 111

Removing & Installing Body Components ▶ Clip

Clip

Removal

1. Press down on the center pin to release the lock.
2. Pull the clip out of the hole.

Center pin

Installation

1. Push the bottom of the center pin.

Two mechanical component diagrams showing pin arrangements with arrows indicating direction (no text or symbols)

1. Insert the clip into the hole.
2. Press down on the center pin to lock the clip.

Harness Band Clip

Removal

Pull the harness band clip while pressing both sides of the anchor.

Anchor

Installation

Install the harness band clip until it seats properly.

Removing & Installing Body Components ▶ Seat

Seat

TabSeat Mounting bolts Recess

Removal

1. Pull the rear corners of the seat up, then remove the mounting bolts using the provided 5 mm Hex wrench. P. 43

2. Pull the seat back and up.

Installation

1. Insert the tab into the recess.

2. Install and tighten the mounting bolts securely.

Make sure that the seat is locked securely in position by pulling it up lightly.

Removing & Installing Body Components ▶ Side Cover

Side Cover

Grommets Prongs Side cover

The right and left side covers can be removed in the same way.

Removal

1. Grasp the side cover.
2. Remove the prongs from the grommets.
3. Remove the side cover.

Installation

Install the parts in the reverse order of removal.

Spark Plug

Checking Spark Plug

For the recommended spark plug, see "Specifications." ➤ P. 140

Use only the recommended type of spark plug in the recommended heat range.

NOTICE

Using a spark plug with an improper heat range can cause engine damage.

This vehicle uses the spark plug that have an iridium coated center electrode. Be sure to observe the following when servicing the spark plug.

• Do not clean the spark plug. If an electrode is contaminated with accumulated objects or dirt, replace the spark plug with a new one.
• To check the spark plug gap, use only a "wire-type feeler gauge." To prevent damaging the iridium coating of the center electrode, never use a "leaf-type feeler gauge."
• Do not adjust the spark plug gap. If the gap is out of specification, replace the spark plug with a new one.

Spark Plug ▶ Checking Spark Plug

1. Disconnect the spark plug cap from the spark plug.
2. Clean any dirt from around the spark plug base.
3. Remove the spark plug using a suitable spark plug wrench.

Spark plug cap Spark plug

1. Inspect the electrodes and center porcelain for deposits, erosion or carbon fouling.
   ▶ If the erosion or deposit is heavy, replace the plug.
2. Make sure that a 1.0 mm wire-type feeler gauge cannot be inserted between the spark plug gap. If the gauge fits in the gap, replace the plug with a new one.

Spark plug gap Plug washer

1. Make sure the plug washer is in good condition.

2. Install the spark plug. With the plug washer attached, thread the spark plug in by hand to prevent cross-threading.

3. Tighten the spark plug:

4. If the old plug is good: 1/8 turn after it seats.

5. If installing a new plug, tighten it twice to prevent loosening:

a) First, tighten the plug: 1/2 turn after it seats.
b) Then loosen the plug.
c) Next, tighten the plug again: 1/8 turn after it seats.

NOTICE

An improperly tightened spark plug can damage the engine. If a plug is too loose, a piston may be damaged. If a plug is too tight, the threads may be damaged.

1. Install the parts in the reverse order of removal.

When reinstalling the spark plug cap, take care to avoid pinching any cables or wires.

Engine Oil

Checking the Engine Oil

1. If the engine is cold, idle the engine for 3 to 5 minutes.
2. Turn the ignition switch to the OFF position and wait for 2 to 3 minutes.
3. Place your vehicle in an upright position on a firm, level surface.
4. Check that the oil level is between the upper level and lower level marks on the oil level inspection window.

Oil fill cap Oil level inspection window Upper level Lower level

Adding Engine Oil

If the engine oil is below or near the lower level mark, add the recommended engine oil.

P. 59, P. 140

1. Remove the oil fill cap. Add the recommended oil until it reaches the upper level mark.

Place your vehicle in an upright position on a firm, level surface when checking the oil level.
▶ Do not overfill above the upper level mark.
▶ Make sure no foreign objects enter the oil filler opening.
▶ Wipe up any spills immediately.

1. Securely reinstall the oil fill cap.

NOTICE

Overfilling with oil or operating with insufficient oil can cause damage to your engine. Do not mix different brands and grades of oil. They may affect lubrication and clutch operation.

For the recommended oil and oil selection guidelines, see "Maintenance Fundamentals."

→ P. 59

Engine Oil ▶ Changing Engine Oil & Filter

Changing Engine Oil & Filter

Changing the oil and filter requires special tools. We recommend that you have your vehicle serviced by your dealer.

Use a new Honda Genuine oil filter or equivalent specified for your model.

NOTICE

Using the wrong oil filter can result in serious damage to the engine.

1. If the engine is cold, idle the engine for 3 to 5 minutes.
2. Turn the ignition switch to the OFF position and wait for 2 to 3 minutes.
3. Place your vehicle on a firm, level surface.
4. Place a drain pan under the drain bolt.
5. Remove the oil fill cap, drain bolt, and sealing washer to drain the oil.

Drain boltSealing washer

1. Remove the oil filter cover, oil filter, spring and gasket by removing the oil filter cover bolts and let the remaining oil drain out.

▶ Discard the oil and oil filter at an approved recycling center.

1. Install the new oil filter with the OUT-SIDE mark facing out.

Engine Oil ▶ Changing Engine Oil & Filter

1. Install the oil filter spring into the oil filter cover, and then install the new gasket and oil filter cover by tightening the oil filter cover bolts.

Torque: 9 lbf·ft (12 N·m, 1.2 kgf·m)

1. Install a new sealing washer onto the drain bolt. Tighten the drain bolt.

Torque: 18 lbf·ft (24 N·m, 2.4 kgf·m)

1. Fill the crankcase with the recommended oil (P. 59, P. 140) and install the oil fill cap.

Required oil

When changing oil & engine oil filter:

1.6 US qt (1.5 L)

When changing oil only:

1.5 US qt (1.4 L)

1. Check the oil level. ➡ P. 76
2. Check that there are no oil leaks.

NOTICE

Improper installation of the oil filter can result in serious damage to the engine.

Oil filter cover Spring Oil filter Gasket Oil filter cover bolts OUT-SIDE mark

Air Cleaner

Changing Air Cleaner Element

Use a new Honda Genuine air cleaner element or an equivalent specified for your vehicle.

NOTICE

Using the wrong air cleaner element may cause premature engine wear or performance problems.

1. Remove the left side cover. ➡ P. 72
2. Disconnect the wire connector of the starter magnetic switch. ➤ P. 115
3. Remove the harness band clip from the air cleaner housing cover. ➡ P. 70
4. Remove the air cleaner housing cover by removing the screws.

Screws Harness band clip Air cleaner housing cover Starter magnetic switch

Air Cleaner ▶ Changing Air Cleaner Element

1. Remove the air cleaner element by releasing the slots from the tabs.
2. Thoroughly clean the inside of the air cleaner housing.
3. Install the new air cleaner element.

Insert the air cleaner element at an angle as shown in the illustration (①).

1. Secure the air cleaner element by hooking its slots with the tabs on the air cleaner housing (②).

▶ Make sure the air cleaner element is installed securely.

1. Install the parts in the reverse order of removal.

Air cleaner housing Slots Tabs Air cleaner element Top view Air cleaner housing ② ① Air cleaner element

Coolant

Checking the Coolant

Check the coolant level in the reserve tank while the engine is cold.

1. Place your vehicle on a firm, level surface.
2. Hold your vehicle in an upright position.
3. Check that the coolant level is between the UPPER level and LOWER level marks on the reserve tank.

If the coolant level is dropping noticeably or the reserve tank is empty, you likely have a serious leak. Have your vehicle inspected by your dealer.

Reserve tank UPPER level LOWER level

Adding Coolant

If the coolant level is below the LOWER level mark, add the recommended coolant

(→ P. 61) until the level reaches the UPPER level mark.

Add fluid only from the reserve tank cap and do not remove the radiator cap.

1. Remove the reserve tank cap and add fluid while monitoring the coolant level.

▶ Do not overfill above the UPPER level mark.
▶ Make sure no foreign objects enter the reserve tank opening.

1. Securely reinstall the reserve tank cap.

WARNING

Removing the radiator cap while the engine is hot can cause the coolant to spray out, potentially scalding you.

Always let the engine and radiator cool down before removing the radiator cap.

Reserve tank cap

Changing Coolant

Have your dealer change the coolant unless you have the proper tools and are mechanically qualified.

Brakes

Checking Brake Fluid

1. Place your vehicle in an upright position on a firm, level surface.
2. Check that the brake fluid reservoir is horizontal and that the fluid level is:
   Front above the LOWER level mark.
   Rear between the LOWER level and UPPER level marks.

If the brake fluid level in either reservoir is below the LOWER level mark or the brake lever and pedal freeplay becomes excessive, inspect the brake pads for wear. If the brake pads are not worn, you most likely have a leak. Have your vehicle inspected by your dealer.

FrontRear Front brake fluid reservoir LOWER LOWER level mark Rear brake fluid reservoir UPPER level mark UPPER LOWER LOWER level mark

Brakes ▶ Inspecting the Brake Pads

Inspecting the Brake Pads

Check the condition of the brake pad wear indicators.

The pads need to be replaced if a brake pad is worn to the indicator.

1. Inspect the brake pads from below the brake caliper.
2. Inspect the brake pads from the rear right of the vehicle.
   If necessary have the pads replaced by your dealer.
   Always replace both left and right brake pads at the same time.

Wear indicators

Wear indicators

Brake pads

Disc

Brake pads

Disc

Brakes ▶ Adjusting the Brake Light Switch

Adjusting the Brake Light Switch

Check the operation of the brake light switch. Hold the brake light switch and turn the adjusting nut in the direction A if the switch operates too late, or turn the nut in the direction B if the switch operates too soon.

Brake light switch A B Adjusting nut

Side Stand

Checking the Side Stand

Side stand springs

1. Check that the side stand operates smoothly. If the side stand is stiff or squeaky, clean the pivot area and lubricate the pivot bolt with clean grease.

2. Check the springs for damage or loss of tension.

3. Sit on the vehicle, shift the transmission to Neutral, and raise the side stand.

4. Start the engine, pull the clutch lever in, and shift the transmission into gear.
5. Lower the side stand all the way. The engine should stop as you lower the side stand. If the engine doesn't stop, have your vehicle inspected by your dealer.

Drive Chain

Inspecting the Drive Chain Slack

Check the drive chain slack at several points along the chain. If the slack is not constant at all points, some links may be kinked and binding.

Have the chain inspected by your dealer.

1. Shift the transmission to Neutral. Stop the engine.
2. Place your vehicle on its side stand on a firm, level surface.
3. Check the slack in the lower half of the drive chain midway between the sprockets.

Drive chain slack:

1 - 1 3/8 in (25 - 35 mm)

▶ Do not ride your vehicle if the slack exceeds 1 15/16 in (50 mm).

Diagram illustrating chain synchronization with labeled components and directional arrows indicating movement

1. Roll the vehicle forward and check that the chain moves smoothly.
2. Inspect the sprockets. ➡ P. 60
3. Clean and lubricate the drive chain. → P. 61

Adjusting the Drive Chain Slack

Adjusting the chain requires special tools. Have the drive chain slack adjusted by your dealer.

CMX300A only

When adjusting the drive chain slack, be careful not to damage the wheel speed sensor and pulser ring.

1. Shift the transmission to Neutral. Stop the engine.
2. Place your vehicle on its side stand on a firm, level surface.
3. Loosen the rear axle nut.
4. Loosen the lock nuts on both sides of the swingarm.

Pulser ring CMX300A only Lock nut Adjusting bolt Rear axle nut Wheel speed sensor CMX300A only

Adjusting plate Scale graduations Lock nut Adjusting bolt

Drive Chain ▶ Adjusting the Drive Chain Slack

1. Turn both adjusting bolts an equal number of turns until the correct drive chain slack is obtained. Turn the adjusting bolts clockwise to tighten the chain. Turn the adjusting bolts counterclockwise to provide more slack. Adjust the slack at a point midway between the drive sprocket and the driven sprocket.

Check the drive chain slack. ➡ P. 88

1. Check rear axle alignment by making sure the end of the chain adjusting plates align with the scale graduations on both sides of the swingarm.

Both marks should correspond. If the axle is misaligned, turn the right or left adjusting bolt until the marks are aligned and recheck chain slack.

1. Hold the adjusting bolts and tighten the lock nuts.

To hold the adjusting bolt, use the provided 5 mm Hex wrench. P. 43

Torque: 15 lbf·ft (21 N·m, 2.1 kgf·m)

Lock nut Hex wrench Adjusting bolt

1. Tighten the rear axle nut.

Torque: 65 lbf·ft (88 N·m, 9.0 kgf·m)

1. Recheck drive chain slack.

Drive Chain ▶ Adjusting the Drive Chain Slack

If a torque wrench was not used for installation, see your dealer as soon as possible to verify proper assembly. Improper assembly may lead to loss of braking capacity.

| Checking the Drive Chain Wear

Check the chain wear label when adjusting the drive chain. If the index mark on the chain adjusting plate enters the red zone on the label after the chain has been adjusted to the proper slack, the chain is excessively worn and must be replaced.

Chain: DID 520VF or RK 520KLO2

If necessary have the drive chain replaced by your dealer.

Red zone Index mark Adjusting plate

Clutch

Checking the Clutch

| Checking the Clutch Lever Freeplay

Check the clutch lever freeplay.

Freeplay at the clutch lever:

3/8 - 13/16 in (10 - 20 mm)

Clutch lever Freeplay

Check the clutch cable for kinks or signs of wear. If necessary have it replaced by your dealer.

Lubricate the clutch cable with a commercially available cable lubricant to prevent premature wear and corrosion.

NOTICE

Improper freeplay adjustment can cause premature clutch wear.

Clutch ▶ Adjusting the Clutch Lever Freeplay

Adjusting the Clutch Lever Freeplay

I Upper Adjustment

Attempt adjustment with the upper clutch cable adjuster first.

1. Loosen the upper lock nut.
2. Turn the upper clutch cable adjuster until the freeplay is 3/8 - 13/16 in (10 - 20 mm).
3. Tighten the upper lock nut and check the freeplay again.

Upper lock nut - + Upper clutch cable adjuster

Lower Adjustment

If the upper clutch cable adjuster is threaded out near its limit, or the correct freeplay cannot be obtained, attempt adjustment with the lower clutch cable adjusting nut.

Clutch ▶ Adjusting the Clutch Lever Freeplay

1. Loosen the upper lock nut and turn the upper clutch cable adjuster all the way in (to provide maximum freeplay). Tighten the upper lock nut.
2. Loosen the lower lock nut.
3. Turn the lower adjusting nut until the clutch lever freeplay is 3/8 - 13/16 in (10 - 20 mm).
4. Tighten the lower lock nut and check the clutch lever freeplay.
5. Start the engine, pull the clutch lever in, and shift into gear. Make sure the engine does not stall and the vehicle does not creep. Gradually release the clutch lever and open the throttle. Your vehicle should move smoothly and accelerate gradually.

Lower adjusting nut + - Lower lock nut

If proper adjustment cannot be obtained or the clutch does not work correctly, see your dealer.

Throttle

Checking the Throttle

With the engine off, check that the throttle rotates smoothly from fully closed to fully open in all steering positions and throttle freeplay is correct. If the throttle does not move smoothly, close automatically, or if the cable is damaged, have the vehicle inspected by your dealer.

Freeplay at the throttle grip flange:

1/16 - 1/4 in (2 - 6 mm)

Freeplay Flange

Adjusting the Throttle Freeplay

1. Slide the cable boot.
2. Loosen the lock nut.
3. Turn the adjuster until the freeplay is 1/16 - 1/4 in (2 - 6 mm).
4. Tighten the lock nut, return the cable boot, and inspect the throttle action again.

Lock nut Cable boot - + Throttle grip Adjuster

Crankcase Breather

Cleaning the Crankcase Breather

1. Place a suitable container to receive deposits.
2. Remove the crankcase breather tube plug from the tube.
3. Drain deposits into a suitable container.
4. Install the crankcase breather tube plug.

Crankcase breather tube plug

Other Adjustments

Adjusting the Headlight Aim

You can adjust vertical aim of the headlight for proper alignment. Turn the bolt in or out as necessary using the provided Phillips screwdriver. P. 43

Obey local laws and regulations.

Bolt Lower Raise

Other Adjustments ▶ Adjusting the Rear Suspension

Adjusting the Rear Suspension

Spring Preload

You can adjust the spring preload by the adjuster to suit the load or the road surface.

Turn the adjuster using the provided pin spanner. P. 43

Position 1 is for a decrease spring preload (soft), or turn the position 3 to 5 increase spring preload (hard). The standard position is 2.

1 2 3 4 5 Pin spanner

NOTICE

Attempting to adjust directly from 1 to 5 or 5 to 1 may damage the shock absorber.

NOTICE

Do not turn the adjuster beyond its limits.

Adjust both left and right shock absorbers to the same spring preload.

Troubleshooting

Engine Will Not Start.... P. 100

Overheating (High coolant temperature indicator is on)....P. 101

Warning Indicators On or Flashing..... P. 102

PGM-FI (Programmed Fuel Injection)

Malfunction Indicator Lamp (MIL)..... P. 102

ABS (Anti-lock Brake System) Indicator ..... P. 102

Other Warning Indications ...... P. 103

Fuel Gauge Failure Indication.... P. 103

Tire Puncture....P. 104

Electrical Trouble.... P. 111

Battery Goes Dead.... P. 111

Burned-out Light Bulb P. 111

Blown Fuse.... P. 113

Unstable Engine Operation Occurs Intermittently....P. 116

Engine Will Not Start

Starter Motor Operates But Engine Does Not Start

Check the following items:

• Check the correct engine starting sequence. ➤ P. 39
• Check that there is gasoline in the fuel tank.
• Check if the PGM-FI malfunction indicator lamp (MIL) is on.
  ▶ If the indicator lamp is on, contact your dealer as soon as possible.

Starter Motor Does Not Operate

Check the following items:

• Check the correct engine starting sequence. ➤ P. 39
  ● Make sure engine stop switch is in the (Run) position. ➤ P. 36
• Check for a blown fuse. ➡ P. 113
• Check for a loose battery connection (P. 67) or battery terminal corrosion (P. 56).
• Check the condition of the battery. → P. 111

If the problem continues, have your vehicle inspected by your dealer.

Overheating (High coolant temperature indicator is on)

The engine is overheating when the following occurs:

● High coolant temperature indicator comes on.
- Acceleration becomes sluggish. If this occurs, pull safely to the side of the road and perform the following procedure. Extended fast idling may cause the high coolant temperature indicator to come on.

NOTICE

Continuing to ride with an overheated engine can cause serious damage to the engine.

1. Stop the engine using the ignition switch, and then turn the ignition switch to the ON position.
2. Check that the radiator fan is operating, and then turn the ignition switch to the OFF position.

If the fan is not operating:

Suspect a fault. Do not start the engine. Transport your vehicle to your dealer.

If the fan is operating:

Allow the engine to cool with the ignition switch in the OFF position.

1. After the engine has cooled, inspect the radiator hose and check if there is a leak.

→ P. 82

If there is a leak:

Do not start the engine. Transport your vehicle to your dealer.

1. Check the coolant level in the reserve tank. P. 82

▶ Add coolant as necessary.

1. If 1-4 check normal, you may continue riding, but closely monitor the high coolant temperature indicator.

Warning Indicators On or Flashing

PGM-FI (Programmed Fuel Injection) Malfunction Indicator Lamp (MIL)

If the indicator comes on while riding, you may have a serious problem with the PGM-FI system. Reduce speed and have your vehicle inspected by your dealer as soon as possible.

ABS (Anti-lock Brake System) Indicator

CMX300A only

If the indicator operates in one of the following ways, you may have a serious problem with the ABS. Reduce your speed and have your vehicle inspected by your dealer as soon as possible.

• Indicator comes on or starts flashing while riding.
• Indicator does not come on when the ignition switch is in the ON position.
• Indicator does not go off at speeds above 6 mph (10 km/h).

If the ABS indicator stays on, your brakes will continue to work as a conventional system, but without the anti-locking function.

The ABS indicator may flash if you turn the rear wheel while the rear wheel is lifted off the ground. In this case, turn the ignition switch to the OFF position, and then to the ON position again. The ABS indicator will go off after your speed reaches 19 mph (30 km/h).

Other Warning Indications

Fuel Gauge Failure Indication

If the fuel system has an error, the fuel gauge indicators will be displayed as shown in the illustrations.

If this occurs, see your dealer as soon as possible.

graph TD
    A["Fuel Efficiency Indicator"] --> B{Flow Indicator}
    B --> C["Output"]
    D["Fuel Efficiency Indicator"] --> E["Output"]
    E --> F["Return Path"]
    style A fill:#f9f,stroke:#333
    style D fill:#f9f,stroke:#333

graph TD
    A["Step 1: E-F"] --> B["Step 2: E-F"]
    B --> C["Step 3: E-F"]
    C --> D["Step 4: E-F"]
    D --> A

graph TD
    A["Step 1: E"] --> B["Step 2: E"]
    B --> C["Step 3: E"]
    C --> D["Step 4: E"]
    D --> A

Tire Puncture

Repairing a puncture or removing a wheel requires special tools and technical expertise. We recommend you have this type of service performed by your dealer.

After an emergency repair, always have the tire inspected/replaced by your dealer.

Emergency Repair Using a Tire Repair Kit

If your tire has a minor puncture, you can make an emergency repair using a tubeless tire repair kit.

Follow the instructions provided with the emergency tire repair kit.

Riding your vehicle with a temporary tire repair is very risky. Do not exceed 30 mph (50 km/h). Have the tire replaced by your dealer as soon as possible.

WARNING

Riding your vehicle with a temporary tire repair can be risky. If the temporary repair fails, you can crash and be seriously injured or killed.

If you must ride with a temporary tire repair, ride slowly and carefully and do not exceed 30 mph (50 km/h) until the tire is replaced.

Removing Wheels

Follow these procedures if you need to remove a wheel in order to repair a puncture.

Tire Puncture ▶ Removing Wheels

CMX300A only

When removing and installing the wheel, be careful not to damage the wheel speed sensor and pulser ring.

Front Wheel

Removal

1. Place your vehicle on a firm, level surface.
2. Remove the front axle bolt.

Wheel speed sensor Pulser ring CMX300A only CMX300A only Right side collar Front axle bolt Right axle pinch bolts

1. Loosen the right and left axle pinch bolts.
2. Support your vehicle securely and raise the front wheel off the ground using a maintenance stand or a hoist.
3. Remove the front axle shaft, front wheel and side collars.

▶ Avoid getting grease, oil, or dirt on the disc or pad surfaces.

▶ Do not pull the brake lever while the wheel is removed.

Left side collar Front axle shaft Left axle pinch bolts

Tire Puncture ▶ Removing Wheels

Installation

1. Attach the side collars to the wheel.
2. On the left side, place the wheel between the fork legs and insert the front axle shaft, through the left fork leg and wheel hub.

NOTICE

When installing a wheel or caliper into original position, carefully fit the brake disc between the pads to avoid scratching them.

1. Align the end of the front axle shaft with the surface of the fork leg.

Surface of fork leg End of front axle shaft

1. Tighten the left axle pinch bolts to hold the front axle shaft.
2. Install and tighten the front axle bolt.

Torque: 38 lbf·ft (51 N·m, 5.2 kgf·m)

1. Loosen the left axle pinch bolts.
2. Tighten the right axle pinch bolts.

Torque: 16 lbf·ft (22 N·m, 2.2 kgf·m)

Tire Puncture ▶ Removing Wheels

1. Lower the front wheel on the ground.
2. Apply the brake lever and pump the fork several times.
3. Retighten the left axle pinch bolts.

Torque: 16 lbf·ft (22 N·m, 2.2 kgf·m)

1. Raise the front wheel off the ground again, and check that the wheel rotates freely after you release the brake.

If a torque wrench was not used for installation, see your dealer as soon as possible to verify proper assembly. Improper assembly may lead to loss of braking capacity.

Tire Puncture ▶ Removing Wheels

Rear Wheel

When using a maintenance stand, be careful not to damage the wheel speed sensor wire (CMX300A only) and brake hose.

Removal

1. Support your vehicle securely and raise the rear wheel off the ground using a maintenance stand or a hoist.
2. Loosen the rear axle nut, lock nuts and turn the adjusting bolts so the rear wheel can be moved all the way forward for maximum drive chain slack.
3. Remove the drive chain from the driven sprocket by pushing the rear wheel forward.
4. Remove the rear axle nut and washer.

Adjusting plate Pulser ring CMX300A only Lock nut Adjusting bolt Rear axle nut/Washer Wheel speed sensor CMX300A only

Rear axle shaft Adjusting plate Lock nut Drive chain Adjusting bolt

1. Remove the rear axle shaft, chain adjusting plates, brake caliper bracket, rear wheel and side collars.

▶ Support the brake caliper assembly so that it doesn't hang from the brake hose. Do not twist the brake hose.
▶ Avoid getting grease, oil, or dirt on the disc or pad surfaces.
▶ Do not push the brake pedal while the wheel is removed.

Installation

1. Attach the right and left side collars in their original locations on the rear wheel.

2. To install the rear wheel, reverse the removal procedure.

▶ Take care to prevent the brake caliper from scratching the wheel during installation.

NOTICE

When installing a wheel or caliper into original position, carefully fit the brake disc between the pads to avoid scratching them.

1. Make sure that the lug on the swingarm is positioned in the slot on the brake caliper bracket.

Brake caliper bracket Lug SwingarmSlot

Tire Puncture ▶ Removing Wheels

1. Adjust the drive chain. ➡ P. 89
2. Hold the adjusting bolts and tighten the lock nuts.

To hold the adjusting bolt, use the provided 5 mm Hex wrench. P. 43

Torque: 15 lbf·ft (21 N·m, 2.1 kgf·m)

Lock nut Hex wrench Adjusting bolt

1. Tighten the rear axle nut.

Torque: 65 lbf·ft (88 N·m, 9.0 kgf·m)

1. Recheck the drive chain slack and rear axle alignment. ➡ P. 88

2. After installing the wheel, apply the brake pedal several times, then check if the wheel rotates freely. Recheck the wheel if the brake drags or if the wheel does not rotate freely.

If a torque wrench was not used for installation, see your dealer as soon as possible to verify proper assembly.

Improper assembly may lead to loss of braking capacity.

Electrical Trouble

Battery Goes Dead

Charge the battery using a motorcycle battery charger.

Remove the battery from the vehicle before charging.

Do not use an automobile-type battery charger, as these can overheat a motorcycle battery and cause permanent damage. If the battery does not recover after recharging, contact your dealer.

NOTICE

Jump starting using an automobile battery can damage your vehicle's electrical system and is not recommended.

Bump starting is also not recommended.

Burned-out Light Bulb

All light bulbs on the vehicle are LEDs. If there is an LED which is not turned on, see your dealer for servicing.

Electrical Trouble ▶ Burned-out Light Bulb

Headlight/Front Turn Signals/Position Lights

Headlight Front turn signals/position lights

The headlight and front turn signals/position lights use several LEDs.

If there is an LED which is not turned on, see your dealer for servicing.

Brake Light/Taillight/Rear Turn Signals/License Plate Light

Rear turn signals Brake light/taillight License plate light

The brake light, taillight, rear turn signals and license plate light use several LEDs.

If there is an LED which is not turned on, see your dealer for servicing.

Blown Fuse

Before handling fuses, see "Inspecting and Replacing Fuses." P. 58

Fuse Box Fuses

1. Remove the battery cover. ➡ P. 67

2. Open the fuse box covers.

3. Pull the fuses out one by one with the fuse puller and check for a blown fuse. Always replace a blown fuse with a spare fuse of the same rating.

The fuse puller is stored on the battery cover.

CMX300

▶ Spare fuses are provided in the fuse box.

CMX300A

▶ Spare fuses are provided in the fuse box and on the battery cover (to access the spare fuse, open the cover).

1. Close the fuse box covers.
2. Reinstall parts in the reverse order of removal.

Cover Fuse puller 30 A spare fuse CMX300A only

Electrical Trouble ▶ Blown Fuse

CMX300

Fuse box covers Spare fuses

Spare fuses Fuse box covers Fuse box covers

Main Fuse

Main fuse Wire connector Starter magnetic switch Spare main fuse

1. Remove the left side cover. ➡ P. 72

2. Remove the starter magnetic switch from the air cleaner housing cover, then disconnect the wire connector of the starter magnetic switch.

3. Pull the main fuse out and check for a blown fuse. Always replace a blown fuse with a spare fuse of the same rating.
   ▶ Spare main fuse is provided in the starter magnetic switch.

4. Reinstall parts in the reverse order of removal.

NOTICE

If a fuse fails repeatedly, you likely have an electrical problem. Have your vehicle inspected by your dealer.

Unstable Engine Operation Occurs Intermittently

If the fuel pump filter is clogged, unstable engine operation will occur intermittently while riding.

Even if this symptom occurs, you can continue to ride your vehicle.

If unstable engine operation occurs even if sufficient fuel is available, have your vehicle inspected by your dealer as soon as possible.

Information

Keys.....P. 118

Instruments, Controls, & Other Features... P. 119

Caring for Your Vehicle.... P. 120

Storing Your Vehicle.... P. 123

Transporting Your Vehicle P. 124

You & the Environment ...... P. 125

Vehicle Identification Number.... P. 126

Emission Control Systems ......P. 127

Catalytic Converter P. 131

Oxygenated Fuels.... P. 132

Authorized Manuals ...... P. 133

Warranty Coverage and Service ...... P. 134

Honda Contacts ......P. 136

USA Reporting Safety Defects ......P. 138

Keys

Keys

Ignition Key/Steering Lock Key

Be sure to record the key number provided with the key number plate. Store the spare key and key number in a safe location.

To make a duplicate, take the spare key or the key number to your dealer.

If you lose all ignition keys and the key number, the ignition switch assembly will probably have to be removed by your dealer to determine the key number.

A metal key holder may cause damage to the area surrounding the ignition switch.

Instruments, Controls, & Other Features

Ignition Switch

Leaving the ignition switch in the ON position with the engine stopped will drain the battery.

Do not turn the key while riding.

Engine Stop Switch

Do not use the engine stop switch except in an emergency. Doing so when riding will cause the engine to suddenly turn off, making riding unsafe. If you stop the engine using the engine stop switch, turn the ignition switch to the OFF position. Failing to do so will drain the battery.

Odometer

The display locks at 999,999 when the read-out exceeds 999,999.

Tripmeter

The tripmeters return to 0.0 when each read-out exceeds 9,999.9.

Document Bag

The owner's manual, registration, and insurance information can be stored in the plastic document bags located underside of the seat.

Ignition Cut-off System

A banking (lean angle) sensor automatically stops the engine and fuel pump if the vehicle falls over. To reset the sensor, you must turn the ignition switch to the OFF position and back to the ON position before the engine can be restarted.

Caring for Your Vehicle

Assist-slipper Clutch System

The assist-slipper clutch system helps to prevent the rear tire from locking up when the deceleration of your vehicle produces a strong engine braking effect. It also makes the clutch lever operation feel lighter.

Use only MA classification engine oil for your vehicle. Using engine oil other than MA classification oil could result in damage to the assist-slipper clutch system.

Caring for Your Vehicle

Frequent cleaning and polishing is important to ensure the life of your Honda. A clean vehicle makes it easier to spot potential problems. In particular, seawater and salts used to prevent ice on roads promote the formation of corrosion. Always wash your vehicle thoroughly after riding on coastal or treated roads.

Washing

Allow the engine, muffler, brakes, and other high-temperature parts to cool before washing.

1. Rinse your vehicle thoroughly using a low pressure garden hose to remove loose dirt.

2. If necessary, use a sponge or a soft towel with mild cleaner to remove road grime.
   ▶ Clean the headlight lens, panels, and other plastic components with extra care to avoid scratching them. Avoid directing water into the air cleaner, muffler, and electrical parts.

3. Thoroughly rinse your vehicle with plenty of clean water and dry with a soft, clean cloth.

4. After the vehicle dries, lubricate any moving parts.

▶ Make sure that no lubricant spills onto the brakes or tires. Brake discs, pads, drum or shoes contaminated with oil will suffer greatly reduced braking effectiveness and can lead to a crash.

1. Lubricate the drive chain immediately after washing and drying the vehicle.
2. Apply a coat of wax to prevent corrosion.

▶ Avoid products that contain harsh detergents or chemical solvents. These can damage the metal, paint, and plastic on your vehicle. Keep the wax clear of the tires and brakes.

If your vehicle has any matte painted parts, do not apply a coat of wax to the matte painted surface.

Washing Precautions

Follow these guidelines when washing:

● Do not use high-pressure washers:
▶ High-pressure water cleaners can damage moving parts and electrical parts, rendering them inoperable.
▶ Water in the air intake can be drawn into the throttle body and/or enter the air cleaner.

● Do not direct water at the muffler:

▶ Water in the muffler can prevent starting and causes rust in the muffler.

● Dry the brakes:

▶ Water adversely affects braking effectiveness. After washing, apply the brakes intermittently at low speed to help dry them.

● Do not direct water under the seat:

▶ Water in the under seat compartment can damage your documents and other belongings.

Caring for Your Vehicle

• Do not direct water at the air cleaner:
  ▶ Water in the air cleaner can prevent the engine from starting.
  ● Do not direct water near the headlight:
  The headlight's inside lens may fog temporarily after washing or while riding in the rain. This does not impact the headlight function.
  However, if you see a large amount of water or ice accumulated inside the lens(es), have your vehicle inspected by your dealer.
• Do not use wax or polishing compounds on matte painted surface:
  ▶ Use a soft cloth or sponge, plenty of water, and a mild detergent to clean matte painted surfaces. Dry with a soft clean cloth.

Aluminum Components

Aluminum will corrode from contact with dirt, mud, or road salt. Clean aluminum parts regularly and follow these guidelines to avoid scratches:

• Do not use stiff brushes, steel wool, or cleaners containing abrasives.
  ● Avoid riding over or scraping against curbs.

Panels

Follow these guidelines to prevent scratches and blemishes:

● Wash gently using a soft sponge and plenty of water.
● To remove stubborn stains, use diluted detergent and rinse thoroughly with plenty of water.
- Avoid getting gasoline, brake fluid, or detergents on the instruments, panels, or headlight.

Exhaust Pipe and Muffler

When the exhaust pipe and muffler are painted, do not use a commercially available abrasive kitchen cleaning compound. Use a neutral detergent to clean the painted surface on the exhaust pipe and muffler. If you are not sure if your exhaust pipe and muffler are painted, contact your dealer.

Storing Your Vehicle

If you store your vehicle outdoors, you should consider using a full-body cover.

If you won't be riding for an extended period, follow these guidelines:

• Wash your vehicle and wax all painted surfaces (except matte painted surfaces). Coat chrome pieces with rust-inhibiting oil.
  ● Lubricate the drive chain. ➡ P. 60
• Place your vehicle on a maintenance stand and position a block so that both tires are off the ground.
  ● After rain, remove the body cover and allow the vehicle to dry.
• Remove the battery (▶ P. 67) to prevent discharge. Fully charge the battery and then place it in a shaded, well-ventilated area.
  ▶ If you leave the battery in place, disconnect the negative ⊖ terminal to prevent discharge.

Transporting Your Vehicle

After removing your vehicle from storage, inspect all maintenance items required by the Maintenance Schedule.

USA For more information about storage, refer to the Honda Winter Storage Guide, available from your dealer.

Canada For more information about storage, visit our website at www.honda.ca and look up "Storage Tips" under the "Honda Warranty" in the Warranty tab for your Model.

Transporting Your Vehicle

If your vehicle needs to be transported, it should be carried on a motorcycle trailer or a flatbed truck or trailer that has a loading ramp or lifting platform, and motorcycle tie-down straps. Never try to tow your vehicle with a wheel or wheels on the ground.

NOTICE

Towing your vehicle can cause serious damage to the transmission.

You & the Environment

Owning and riding a vehicle can be enjoyable, but you must do your part to protect the environment.

Choose Sensible Cleaners

Use a biodegradable detergent when you wash your vehicle. Avoid aerosol spray cleaners that contain chlorofluorocarbons (CFCs) which damage the atmosphere's protective ozone layer.

Recycle Wastes

Put oil and other toxic wastes in approved containers and take them to a recycling center. Call your local or state office of public works or environmental services to find a recycling center in your area, and to get instructions on how to dispose of non-recyclable wastes. Do not place used engine oil in the trash, or pour it down a drain or on the ground. Used oil, gasoline, coolant, and cleaning solvents contain poisons that can hurt refuse workers and contaminate drinking water, lakes, rivers, and oceans.

Vehicle Identification Number

Vehicle Identification Number

The VIN and engine serial number uniquely identify your vehicle and are required in order to register your vehicle. They may also be required when ordering replacement parts. You should record these numbers and keep them in a safe place.

3D model of a motorcycle with visible engine components and a labeled 'VIN' annotation (no other text or symbols)

VIN

Engine number

Emission Control Systems

Emission Control Systems

Your vehicle engine emits combustion byproducts, including carbon monoxide (CO), oxides of nitrogen (NOx), and hydrocarbons (HC). Gasoline evaporation also emits hydrocarbons. Controlling the production of NOx, CO, and HC is important for the environment.

Exhaust Emission Requirements

The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Environment and Climate Change Canada (ECCC) require that your vehicle comply with applicable exhaust, crankcase, and fuel permeation emission standards during its useful life, when operated and maintained according to the instructions provided.

CARB also requires that your vehicle comply with applicable evaporative emission requirements during its useful life, when

operated and maintained according to the instructions provided.

USA Compliance with the terms of the Distributor's Warranties for Honda Motorcycle Emission Control Systems is necessary in order to maintain a valid emissions system warranty.

The Vehicle Emission Control Information label is located on the right side of the swingarm.

Canada only Vehicle emission control information label Vehicle emission control information label

Emission Control Systems

Noise Emission Requirements

The EPA requires that vehicles built after January 1, 1983 comply with applicable noise emission standards for one year or 3,730 miles (6,000 km) after the time of purchase when operated and maintained according to the instructions provided.

Exhaust Emission Control System

The exhaust emission control system includes the following components that should not need adjustment, although periodic inspection by your dealer is recommended.

PGM-FI System

The PGM-FI (programmed fuel injection) system uses sequential multiport fuel injection, and is comprised of air intake, engine control, fuel control, and exhaust control subsystems. The engine control module (ECM) uses sensors to determine how much air enters the engine, and then controls how much fuel to inject.

Ignition Timing Control System

The ignition timing control system adjusts the ignition timing to reduce the amount of HC, CO, and NOx produced.

Secondary Air Injection System

The secondary air injection system adds filtered air into the exhaust gas to help improve emission control performance.

Catalytic Converters

The exhaust system contains one or more catalytic converters. Catalytic converters use a catalyst to convert most of the harmful exhaust gas compounds into harmless compounds.

Evaporative Emission Control System

50 STATE (meets California)

An evaporative emissions control system uses a canister filled with charcoal to adsorb fuel vapor from the fuel tank while the engine is off. The vapor is drawn into the engine and burned while riding.

Crankcase Emissions Control System

The engine is equipped with a closed crankcase system to prevent discharging crankcase emissions into the atmosphere. Blow-by gas is returned to the combustion chamber through the crankcase breather hose, air cleaner housing and throttle body.

Fuel Permeation Emission Control

The fuel tank, fuel hoses, and fuel vapor charge hoses use fuel permeation control technologies to prevent fuel vapor emissions. Tampering with these components to reduce or defeat the effectiveness of the fuel permeation technologies is prohibited.

Noise Emission Control System

TAMPERING WITH THE NOISE CONTROL SYSTEM IS PROHIBITED:

U. S. federal law prohibits, and Canadian provincial laws may prohibit, the following acts or the causing thereof: (1) The removal or rendering inoperative by any person, other than for purposes of maintenance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use; or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.

Emission Control Systems

AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE FOLLOWING ACTS:

● Removal of, or puncturing the muffler, baffles, header pipes or any other component which conducts exhaust gases.
● Removal of, or puncturing of any part of the intake system.
● Lack of proper maintenance.
- Removing or disabling any emissions compliance component, or replacing any compliance component with a noncompliant component.

Problems Affecting Vehicle Exhaust Emissions

Have your vehicle inspected and repaired by your dealer if you experience any of the following symptoms:

● Hard starting or stalling after starting
- Rough idling
● Misfiring or backfiring during acceleration
● Poor engine performance and poor fuel economy

Catalytic Converter

Catalytic Converter

This vehicle is equipped with a three-way catalytic converter. The catalytic converter contains precious metals that serve as catalysts in high temperature chemical reactions that convert hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) in the exhaust gasses into safe compounds.

A defective catalytic converter contributes to air pollution and can impair your engine's performance. A replacement unit must be an original Honda part or equivalent.

Follow these guidelines to protect your vehicle's catalytic converter.

● Always use unleaded gasoline. Leaded gasoline will damage the catalytic converter.
- Keep the engine in good running condition. A poorly running engine can cause the catalytic converter to overheat causing damage to the converter or the vehicle.
- If your engine is misfiring, backfiring, stalling, or otherwise not running properly, stop riding and turn off the engine. Have your vehicle serviced as soon as possible.

Oxygenated Fuels

Oxygenated Fuels

Some conventional fuels blended with alcohol or an ether compound are available in some locales to help reduce emissions to meet clean air standards. These gasolines are collectively referred to as oxygenated fuels. If you plan to use oxygenated fuel, check that it is unleaded and meets the minimum octane rating and blend requirement.

The following fuel blends are EPA-approved and have been approved for use in your vehicle:

● Ethanol (ethyl alcohol) up to 10% by volume.
Gasoline containing ethanol may be marketed under the name Gasohol.
- Methanol (methyl alcohol) up to 5% by volume that contain cosolvents and corrosion inhibitors to protect the fuel system. Never use a blend containing more than 5%.

If you accidentally fill your fuel tank with an oxygenated fuel containing higher percentages, you may experience performance problems. To resolve the problem, have your dealer drain the fuel tank and replace with the correct fuel. Fuel system or performance problems resulting from the use of an oxygenated fuel containing higher percentages are not covered by your warranty.

NOTICE

Improper use of oxygenated fuels can damage metal, rubber, and plastic parts of your fuel system.

Oxygenated fuel can also damage paint.

Damage caused by spilled fuel is not covered by warranty.

If you notice any undesirable operating symptoms or performance problems, try a different brand of gasoline.

Authorized Manuals

Authorized Manuals

USA The Service Manual used by your authorized dealer is available from your Honda dealer or Helm, Inc.

Canada See your dealer to order authorized manuals.

Also available, but not necessary to service your model, is the Honda Common Service Manual, which explains basic service information for various systems on Honda motorcycles, scooters, and ATV.

USA The Winter Storage Guide in conjunction with the Owner's Manual and Service Manual can help you prepare your Honda motorcycle, scooter, ATV, and SxS for winter storage.

These Honda manuals are written for the professional technician. However, if you possess the proper tools, observe the safety standards, and are mechanically capable, you should find them easy to use.

Special Honda tools are necessary for some procedures.

USA

Order online: www.helminc.com

Order Toll Free: 1-888-CYCLE93

(1-888-292-5393)

(NOTE: For Credit Card Orders Only)

Monday - Friday 8:00 AM - 6:00 PM EST

Publication Item No. Description
61K8703 2020 CMX300/A Service Manual
61CSM00 Common Service Manual
S9507	USA Winter Storage Guide
31K87A30 2020 CMX300/A Owner's Manual

Warranty Coverage and Service

Warranty Coverage and Service

Coverage

Your new Honda is covered by the following warranties:

● Vehicle Limited Warranty
● Emission Control System Warranty
● USA Noise Control Warranty

The responsibilities, restrictions, and exclusions that apply to these warranties are explained in the Warranties Booklet given to you by your Honda dealer at the time of purchase. Always keep your Honda owner's card with your Warranties Booklet.

Canada Please refer to the Warranty Booklet posted on our website at www.honda.ca.

It is important to realize that your warranty applies only to defects in material or workmanship of your Honda. Your warranty coverage does not apply to the normal wear and deterioration associated with use of the vehicle.

Your warranty coverage is not voided if you perform your own maintenance. However, failures that occur due directly to improper maintenance are not covered by these warranties.

USA You can extend almost all of your warranty coverage through the Honda Protection Plan. For more information, see your Honda dealer.

Warranty Coverage and Service

Service

Please remember that maintenance recommended in the Maintenance Schedule is not included in your warranty coverage.

If you believe you have a problem with your vehicle, call the service department of your Honda dealer. Make an appointment for an inspection and diagnosis. You will be asked to authorize that inspection, and your dealer will return the results of the inspection. If a problem exists and is covered under warranty, your dealer will perform the warranty repairs. If you have any questions about your warranty coverage or the nature of the repair, talk to the Service Manager of your Honda dealer.

If a misunderstanding occurs and you aren't satisfied with your dealer's handling of the situation, we suggest you discuss your problem with the appropriate member of the dealership's management team. If you are still not satisfied, contact the owner of the dealership or their designated representative.

Honda Contacts

Honda Contacts

American Honda Motor Co., Inc.

If you wish to contact Honda directly to comment on your experiences with your vehicle or with your dealer, please send your comments to the following address:

Motorcycle Division,

American Honda Motor Co., Inc.,

P.O. Box 2200, Torrance,

CA 90509-2200

Mailstop: 100-4C-7B,

Telephone: [phone].

Canada

Honda Canada Inc.

Customer Relations Department,

180 Honda Boulevard

Markham, Ontario

L6C 0H9

Telephone: [phone]

Fax: [phone]

E-mail: [e-mail]

Please include the following information in your letter:

● Name, address, and telephone number
● Product model, year, and VIN
● Date of purchase
● Dealer name and address

We will likely ask your Honda dealer to respond, or possibly acknowledge your comments directly.

Your Honda Dealer

The service department of your Honda dealer offers trained personnel to perform regular maintenance and most repairs. It has the latest available service information from Honda and also handles warranty inspections and repairs.

The parts department offers Honda Genuine Parts, Pro Honda products, Honda Genuine Accessories (USA only), and Honda accessories and products (Canada only) that provide the same quality that went into your vehicle.

USA The sales department offers the Honda Protection Plan to extend almost all of your warranty coverage.

Your Honda dealer can also supply information about, riding events, and information about safety training available in your local area.

Reporting Safety Defects

USA Reporting Safety Defects

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying American Honda Motor Co., Inc.

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer, or American Honda Motor Co., Inc.

To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at: 1-888-327-4236 (TTY: 1-800-424-9153); go to http://www.safercar.gov; or write to: Administrator, NHTSA, 1200 New Jersey Avenue, SE., Washington, DC 20590. You can also obtain other information about motor vehicle safety from: http://www.safercar.gov.

Specifications

■ Main Components

Overall length 86.8 in (2,205 mm)
Overall width 32.3 in (820 mm)
Overall height 42.9 in (1,090 mm)
Wheelbase 58.7 in (1,490 mm)
Minimum ground clearance	5.9 in (150 mm)
Caster angle 28°
Trail 4.3 in (110 mm)
Curb weight	CMX300
	49 STATE 364 lb (165 kg)
	50 STATE (meets California)	366 lb (166 kg)
	CMX300A
	50 STATE (meets California)	370 lb (168 kg)
	Canada model 368 lb (167 kg)
Maximum weight capacity	Model not equipped with Optional Passenger Seat Kit *1	346 lb (157 kg)
	Model equipped with Optional Passenger Seat Kit *2	346 lb (157 kg)

*1: Including rider, all luggage, and accessories
*2 : Including rider, passenger, all luggage, and accessories

Passenger capacity	Model not equipped with Optional Passenger Seat Kit	Rider only (no passenger)
	Model equipped with Optional Passenger Seat Kit	Rider and 1 passenger
Minimum turning radius	9.2 ft (2.8 m)
Displacement 17.4 cu-in (286 cm ^3 )
Bore x stroke 2.99 x 2.48 in (76.0 x 63.0 mm)
Compression ratio	10.7 : 1
Fuel	Unleaded gasolineRecommended: 86 PON or higher
Tank capacity 2.96 US gal (11.2 L)
Battery	YTZ8V12 V-7 Ah (10 HR)
Gear ratio	1st 3.416
	2nd 2.250
	3rd 1.650
	4th 1.350
	5th 1.166
	6th 1.038
Reduction ratio (primary / final)	2.807 / 2.571

Specifications

Service Data

Tire size	Front 130/90-16M/C 67H
	Rear 150/80-16M/C 71H
Tire type Bias-ply, tubeless
Recommended tire	Front DUNLOP D404F QA
	Rear DUNLOP D404 QA
Tire air pressure	Front	29 psi (200 kPa, 2.00 kgf/cm ^2 )
	Rear	29 psi (200 kPa, 2.00 kgf/cm ^2 )
Minimum tread depth	Front 0.06 in (1.5 mm)
	Rear 0.08 in (2.0 mm)
Spark plug (standard) SIMR8A9 (NGK)
Spark plug gap	(non-adjustable)	0.031 - 0.035 in (0.80 - 0.90 mm)
Idle speed	(non-adjustable)	1,500 ± 100 rpm
Recommended engine oil	API Service Classification SG or higher except oils labeled as energy conserving or resource conserving on the circular API service label, SAE 10W-30, JASO T 903 standard MA, Pro Honda GN4 4-stroke oil (USA & Canada) or Honda 4-stroke oil, or an equivalent motorcycle oil

Engine oil capacity	Afterdraining	1.5 US qt (1.4 L)
	Afterdraining &filter change	1.6 US qt (1.5 L)
	Afterdisassembly	1.9 US qt (1.8 L)
Recommended brake fluid	Honda DOT 4 Brake Fluid
Cooling system capacity	1.15 US qt (1.09 L)
Recommended coolant	Pro Honda HP Coolant
Recommended drive chain lubricant	Pro Honda HP Chain Lube or equivalent
Drive chain slack 1 - 1 3/8 in (25 - 35 mm)
Standard drive chain	DID 520VF or RK 520KLO2
	No. of links 110
Standard sprocket size	Drivesprocket	14T
	Drivensprocket	36T

Specifications

Bulbs

Headlight LED

Brake light/Taillight LED

Front turn signal/Position light LED

Rear turn signal LED

License plate light LED

Fuses

Main fuse 30 A

Other fuse

CMX300 15 A, 7.5 A

CMX300A 30 A, 15 A, 7.5 A

■ Torque Specifications

Engine oil drain bolt 18 lbf·ft (24 N·m, 2.4 kgf·m)

Oil filter cover bolt 9 lbf·ft (12 N·m, 1.2 kgf·m)

Drive chain adjusting lock nut 15 lbf·ft (21 N·m, 2.1 kgf·m)

Rear wheel axle nut 65 lbf·ft (88 N·m, 9.0 kgf·m)

Front wheel axle bolt 38 lbf·ft (51 N·m, 5.2 kgf·m)

Front wheel axle pinch bolt 16 lbf·ft (22 N·m, 2.2 kgf·m)

Information Record

VIN
Engine No.
Color Label & Code
Owner's Name
Address
City/State
Phone
Dealer's Name
Address
City/State
Phone
Service Manager

Index

A

ABS (Anti-lock Brake System).... 12

ABS (Anti-lock Brake System)

Indicator 35,102

Accessories.... 15

Air Cleaner 66,80

Authorized Manuals.... 133

Average Fuel Mileage.... 25

B

Battery.... 56, 67

Brake Light Switch.... 86

Brakes

Fluid 60,84

Pad Wear 85

Braking 11

Bulb

Brake Light/Taillight/Rear TurnSignals/License Plate Light 112

Headlight/Front Turn Signals/Position Lights 112

C

Catalytic Converter.... 131

Clip 70

Clutch

Freeplay....93

System 92

Color Label 55

Coolant....82

Crankcase Breather 96

Crash 5

Current Fuel Mileage 26

D

Digital Clock Adjustment.... 31

Display Setting 29

Drive Chain.... 60, 88

E

Electrical Trouble 111

Emission Control Systems 127

Engine

Number.... 126

Oil....59,76

Oil Filter 78

Overheats 101

Starting 39

Stop Switch 36, 119

Stopping 119

Will Not Start 100

Environment 125

Equipment

Owner's Manual 44

Tool 43

F

Flooded Engine 39

Fuel

Gauge 23

Oxygenated 132

Recommended...... 42

Remaining.... 23

Reserve Fuel Consumption.... 26

Tank Capacity 42

Fuses.... 58, 113

G

Gasohol 132

Gasoline 42

Gear Position Indicator 23

H

Harness Band Clip 70

Hazard Switch.... 36

Headlight Aim 97

Headlight Dimmer Switch 36

High Beam Indicator.... 35

High Coolant Temperature Indicator ..... 34

Honda Contacts 136

Horn Button 36

|

Ignition Cut-off System

Banking Sensor.... 87, 119

Side Stand....87

Ignition Key...... 118

Ignition Switch 37, 119

Indicators.... 34

Information Record.... 142

Instruments 22

Instruments, Controls, & Other Features 119

L Labels......7 Load Limits ......16 Loading Guidelines......16

M Maintenance Fundamentals .... 52 Importance .... 46 Safety .... 47 Schedule .... 48

Maximum Weight Limit .... 16 Modifications.... 15

N Neutral Indicator 34, 35 O Odometer 24, 25, 119 Oil Engine 59, 76

Overheating 101 Oxygenated Fuels 132

P Parking .... 13 Parts Location.... 20 Passing Light Control Switch .... 36 PGM-FI (Programmed Fuel Injection) Malfunction Indicator Lamp (MIL).... 34, 102 Protective Apparel.... 9

R Rear Suspension....98 Recommended Coolant....61 Engine Oil....59, 76 Fuel....42

Refueling....42 Removal Battery....67 Clip....70 Harness Band Clip....70 Seat....71 Side Cover....72

Repair Kit 104

Reporting Safety Defects.... 138

Riding Precautions 11

S

Safety Guidelines 3

Safety Labels 7

Safety Precautions....9

Seat 71

SEL Button 22

SET Button.... 22

Shifting Gears 41

Side Cover 72

Side Stand....87

Side Stand Ignition Cut-off System 87

Spark Plug 73

Specifications.... 139

Speedometer 23

Start Button.... 36

Starting the Engine 39

Steering Lock 38

Stopping Engine 119

Storage

Equipment 43

Owner's Manual 44

Tool 43

Storing Your Vehicle.... 123

Switches 36

T

Throttle....95

Tires

Air Pressure 62

Puncture.... 104

Replacing 62,104

Transporting Your Vehicle.... 124

Tripmeter 24, 25, 119

Troubleshooting 99

Turn Signal Indicator.... 34, 35

Turn Signal Switch.... 36

V

Vehicle Identification Number 126

W

Warning Indicators On or Flashing 102

Warranty Coverage and Service 134

Washing Your Vehicle 120

Weight Limit 16

Wheels

Front Removal 105

Rear Removal....108

California Proposition 65 Warning

⚠ WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

www.P65Warnings.ca.gov/passenger-vehicle.