380000 - Internal combustion engine MTD - Free user manual and instructions

USER MANUAL 380000 MTD

Operating & Maintenance Instructions

Model Series

Covered in

this Manual, Includes

Gasoline,

Natural Gas

and Liquid

Propane Gas

Engines

290000

300000

350000

380000

Model

Type

Code

Note: General Model Series numbers noted above include many specific numbers like the ones on your engine. To get replacement parts or technical assistance in the future, write your engine Model, Type, Code and date of purchase here.

TABLE OF CONTENTS

Safety 3

Engine Information 6

Oil 7

Fuel 8

Starting and Stopping 9

Maintenance 11

Adjustments 14

Parts and Service & Storage 16

Warranty Information 17

WARNING

Briggs & Stratton does not approve or authorize the use of these engines on 3-wheel All Terrain Vehicles (ATVs), motor bikes, aircraft products or vehicles intended for use in competitive events. Use of these engines in such applications could result in property damage, serious injury (including paralysis), or even death.

Need assistance? Visit our website for detailed information regarding Briggs & Stratton engines,

www.briggsandstratton.com

In the USA and Canada, a 24 hour hot line,

1-800-233-3723

has a menu of pre-recorded messages offering engine maintenance information.

Look For Relevant Emissions Durability Period and Air Index Information On Your Engine Emissions Label

Engines that are certified to meet the California Air Resources Board (CARB) Tier 2 Emission Standards must display information regarding the Emissions Durability Period and the Air Index. Briggs & Stratton makes this information available to the consumer on our emission labels.

The Emissions Durability Period describes the number of hours of actual running time for which the engine is certified to be emissions compliant, assuming proper maintenance in accordance with the Operating & Maintenance Instructions. The following categories are used:

Moderate: Engine is certified to be emission compliant for 125 hours of actual engine running time.

Intermediate:Engine is certified to be emission compliant for 250 hours of actual engine running time.

Extended:Engine is certified to be emission compliant for 500 hours of actual engine running time.

For example, a typical walk-behind lawn mower is used 20 to 25 hours per year. Therefore, the Emissions Durability Period of an engine with an intermediate rating would equate to 10 to 12 years.

The Air Index is a calculated number describing the relative level of emissions for a specific engine family. The lower the Air Index, the cleaner the engine. This information is displayed in graphical form on the emissions label.

After July 1, 2000, Look For Emissions Compliance Period On Engine Emissions Compliance Label

After July 1, 2000 certain Briggs & Stratton engines will be certified to meet the United States Environmental Protection Agency (USEPA) Phase 2 emission standards. For Phase 2 certified engines, the Emissions Compliance Period referred to on the Emissions Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements. For engines less than 225 cc displacement, Category C = 125 hours, B = 250 hours and A = 500 hours. For engines of 225 cc or more, Category C = 250 hours, B = 500 hours and A = 1000 hours.

The displacement of Model Series 290000 and 300000 engines is 480 cc, 350000 engines is 570 cc, and 380000 engines is 627 cc.

This is a generic representation of the emission label typically found on a certified engine.

• Read entire Operating & Maintenance Instructions AND the instructions for the equipment this engine powers.*
• Failure to follow instructions could result in serious injury or death.

THE OPERATING & MAINTENANCE INSTRUCTIONS CONTAIN SAFETY INFORMATION TO

• Make you aware of hazards associated with engines
• Inform you of the risk of injury associated with those hazards, and
• Tell you how to avoid or reduce the risk of injury.

The safety alert symbol ( ) is used to identify safety information about hazards that can result in personal injury.

A signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to indicate the likelihood and the potential severity of injury. In addition, a hazard symbol may be used to represent the type of hazard.

DANGER indicates a hazard which, if not avoided, will result in death or serious injury.

WARNING indicates a hazard which, if not avoided, could result in death or serious injury.

CAUTION indicates a hazard which, if not avoided, might result in minor or moderate injury.

CAUTION, when used without the alert symbol, indicates a situation that could result in damage to the engine.

WARNING

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

HAZARD SYMBOLS AND MEANINGS

Fire

Explosion

Moving Parts

Toxic Fumes

Shock

Hot Surface

Kickback

Wear Eye Protection

Frostbite

THE INTERNATIONAL SYMBOLS USED ON THE ENGINE OR IN THIS MANUAL INCLUDE:

Safety Alert

Read Operating & Maintenance Instructions

On Off

Oil

Stop

Fuel Shutoff

Choke

Fuel

SAFETY

WARNING

Fuel and its vapors are extremely flammable and explosive.

Fire or explosion can cause severe burns or death.

WHEN FUELING

• Turn engine OFF and let engine cool at least 2 minutes before refueling engine.
• Fill fuel tank outdoors or in well-ventilated area.
• On GASOLINE operated engines, do not overfill fuel tank. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion.
• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.
• Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if necessary.

WHEN STARTING ENGINE

• Make sure spark plug, muffler, fuel cap and air cleaner are in place.
• Do not crank engine with spark plug removed.
• If fuel spills, wait until it evaporates before starting engine.
• If GASOLINE engine floods, set choke to OPEN/RUN position, place throttle in FAST and crank until engine starts.

WHEN OPERATING EQUIPMENT WITH GASOLINE ENGINE

• Do not tip engine or equipment at angle which causes gasoline to spill.
• Do not choke carburetor to stop engine.

WHEN TRANSPORTING EQUIPMENT

• On gasoline engine, transport with fuel tank EMPTY or with fuel shut-off valve OFF.
• On NATURAL / LIQUID PETROLEUM (LP) GAS engine, transport with fuel cylinder empty, and valve closed, or tank disconnected.

WHEN STORING FUEL OR EQUIPMENT WITH FUEL IN TANK OR IN FUEL CYLINDER

• Store away from furnaces, stoves, water heaters or other appliances that have pilot light or other ignition source because they can ignite gasoline vapors.

WARNING

Gaseous fuels are extremely flammable and readily form explosive air-vapor mixtures at ambient temperatures.

IF YOU SMELL GAS:

• DO NOT start the engine.
• DO NOT actuate any electrical switches.
• DO NOT use the phone in the vicinity.
  Evacuate the area.
• Contact the gas supplier or fire department.

REMEMBER:

• LPG vapor is heavier than air and trends to collect in low areas. NG vapor is lighter than air and tends to collect in high areas. Both may travel to remote locations.
• Keep all flames, sparks, pilot lights, and other ignition sources away from the area where the engine is operated or repaired.
• DO NOT smoke when operating or repairing the engine.
• DO NOT store gasoline or other flammable vapors or liquids in the vicinity of the engine.
  BEFORE doing any service work to the engine, shut off the gas supply.
• After initial installation or servicing, check for gas leaks. DO NOT use an open flame. Apply very soapy water or leak test solution with a brush and look for bubbles.
• Keep the equipment and the area surrounding the engine free of debris.
• Install the fuel system according to applicable fuel/gas codes.

WARNING

Wear eye protection when doing repair work.

Frostbite can result from skin/eye contact with leaking LP liquid.

• Installation, adjustment and repair work should be done by a qualified technician.
• Flexible supply lines should be checked regularly to make sure they are in good condition. Replace damaged or leaking components.

WARNING

Starting engine creates sparking.

Sparking can ignite nearby flammable gases.

Explosion and fire could result.

• If there is natural or LP gas leakage in area, do not start engine.
• Do not use pressurized starting fluids because vapors are flammable.
• Servicing of products fueled by Natural Gas or Propane may require licensing or permits issued by state, provincial and/or local governments.

WARNING

Running engines produce heat. Engine parts, especially muffler, become extremely hot.

Severe thermal burns can occur on contact.

Combustible debris, such as leaves, grass, brush, etc. can catch fire.

• Allow muffler, engine cylinder and fins to cool before touching.
• Remove accumulated combustibles from muffler area and cylinder area.
• Install and maintain in working order a spark arrester before using equipment on forest-covered, grass-covered, brush-covered unimproved land. The state of California requires this (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal land.

WARNING

Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than you can let go.

Broken bones, fractures, bruises or sprains could result.

• When starting engine, pull cord slowly until resistance is felt, then pull rapidly.
• Remove all external equipment/engine loads before starting engine.
• Direct coupled equipment components such as, but not limited to, blades, impellors, pulleys, sprockets, etc., must be securely attached.

WARNING

Rotating parts can contact or entangle hands, feet, hair, clothing, or accessories.

Traumatic amputation or severe laceration can result.

• Operate equipment with guards in place.
• Keep hands and feet away from rotating parts.
• Tie up long hair and remove jewelry.
• Do not wear loose-fitting clothing, dangling drawstrings or items that could become caught.

WARNING

Engines give off carbon monoxide, an odorless, colorless, poison gas.

Breathing carbon monoxide can cause nausea, fainting or death.

• Start and run engine outdoors.
• Do not start or run engine in enclosed area, even if doors or windows are open.

WARNING

Unintentional sparking can result in fire or electric shock.

Unintentional start-up can result in entanglement, traumatic amputation, or laceration.

BEFORE PERFORMING ADJUSTMENTS OR REPAIRS

• Disconnect spark plug wire and keep it away from spark plug.
• Disconnect battery at negative terminal (only engines with electric start).

WHEN TESTING FOR SPARK

• Use approved spark plug tester.
• Do not check for spark with spark plug removed.

1. Oil fill cap
2. Dipstick
3. Fuel pump (if equipped)
4. Spark plug
5. Emission label and Engine Model Type Code xxxxxx xxxxx xx
6. 12V electric starter (if equipped)
7. Oil drain plug
8. Blower housing

Equipped with optional fuel tank.

1. Rope handle
2. Carburetor or LPG/NG Fuel mixer
3. Stop switch (if equipped)
4. Air cleaner (without fuel tank)
5. Fuel shut-off valve (if equipped)
6. Air cleaner (with fuel tank)
7. Fuel fill/fuel tank (if equipped)
8. Exhaust manifold
9. Oil filter (if equipped)

GENERAL INFORMATION

This is a twin cylinder, overhead valve (OHV), air-cooled engine. It is a low emissions engine.

In the state of California, Model Series 290000, 300000, 350000 and 380000 engines are certified by the California Air Resources Board to meet emissions standards for 250 hours. Such certification does not grant the purchaser, owner or operator of this engine any additional warranties with respect to the performance or operational life of this engine. This engine is warranted solely according to the product and emissions warranties stated elsewhere in this manual.

TECHNICAL INFORMATION

POWER RATINGS: The power ratings for an individual engine model are initially developed by starting with SAE (Society of Automotive Engineers) code J1940 (Small Engine Power & Torque Rating Procedure) (Revision 2002-05). Given both the wide array of products on which our engines are placed, and the variety of environmental issues applicable to operating the equipment, it may be that the engine you have purchased will not develop the rated horsepower when used in a piece of power equipment (actual "on-site" power). This difference is due to a variety of factors including, but not limited to, the following: differences in altitude, temperature, barometric pressure, humidity, fuel, engine lubrication, maximum governed engine speed, individual engine to engine variability, design of the particular piece of power equipment, the manner in which the engine is operated, engine run-in to reduce friction and clean out of combustion chambers, adjustments to the valves and carburetor, and other factors. The power ratings may also be adjusted based on comparisons to other similar engines utilized

in similar applications, and will therefore not necessarily match the values derived using the foregoing codes.

TUNE-UP SPECIFICATIONS

Armature air gap 0.008 - 0.012 in. (0.20 - 0.30 mm)

Spark plug gap 0.030 in. (0.76 mm)

Valve clearance with valve springs installed and piston 1/4 in. (6 mm) past top dead center (check when engine is cold). See Repair Manual P/N 272144.

Intake 0.004 - 0.006 in. (0.10 - 0.15 mm)

Exhaust 0.004 - 0.006 in. (0.10 - 0.15 mm)

MODEL SERIES 290000 and 300000

Bore 2.68 in. (68 mm)

Stroke 2.60 in. (66 mm)

Displacement 29.3 cu. in. (480 cc)

MODEL SERIES 350000

Bore 2.83 in. (72 mm)

Stroke 2.76 in. (70 mm)

Displacement 34.7 cu. in. (570 cc)

MODEL SERIES 380000

Bore 2.97 in. (75.5 mm)

Stroke 2.76 in. (70 mm)

Displacement 38.2 cu. in. (627 cc)

Note: For practical operation, the horsepower loading should not exceed 85% of rated horsepower. Engine power will decrease 3 - 1 / 2% for each 1,000 feet (300 meters) above sea level and 1% for each 10^ (5.6^) above 77^ (25^) . It will operate satisfactorily at an angle up to 15^ .

CAUTION: This engine is shipped from Briggs & Stratton without oil. Check oil level before starting engine. If you start the engine without oil, the engine will be damaged beyond repair and will not be covered under warranty.

OIL CAPACITY

Engine holds approximately 1-1/2 quarts (48 ounces or 1.4 liters) when changing oil and filter.

TYPE OF OIL TO USE

• Use a high quality detergent oil classified "For Service SF, SG, SH, SJ" or higher, such as Briggs & Stratton 30W, Part Number 100005 (20 oz) or 100028 (48 oz).
• Do not use special additives.
• Choose a viscosity according to the table opposite.

Note: Synthetic oil meeting ILSAC GF-2, API certification mark and API service symbol (shown at left) with "SJ/CF ENERGY CONSERVING" or higher, is an acceptable oil at all temperatures. Use of synthetic oil does not alter required oil change intervals.

• CAUTION: Air cooled engines run hotter than automotive engines. The use of non-synthetic multi-viscosity oils (5W-30, 10W-30, etc.) in temperatures above 40^ ( 4^ ) will result in higher than normal oil consumption. When using a multi-viscosity oil, check oil level more frequently.
  ** CAUTION: SAE 30 oil, if used below 40^ F (4^ C), will result in hard starting and possible engine bore damage due to inadequate lubrication.

CHECKING AND ADDING OIL

• Check oil level before starting the engine.

• Check level daily, or after every eight (8) hours.

• Keep oil level at FULL.

• Do not overfill.

Oil filling procedure: first add 1 quart (32 ounces or 1 liter). Start and run engine at idle for 30 seconds. Shut engine off and wait 30 seconds. Then add more oil slowly to bring level to Full mark on dipstick.

Oil checking procedure: before starting engine, check oil level.

[1] Place engine level. Clean around oil fill and dipstick.

[2] Remove dipstick and wipe clean with cloth.
[3] Then push dipstick back in and remove to check oil level.

[4] Remove oil fill cap (if equipped). Pour oil slowly.

[5] Fill to FULL line on dipstick - recheck.

[6] Replace dipstick firmly.

TYPE OF FUEL TO USE

GASOLINE POWERED ENGINES

• Use clean, fresh, regular unleaded gasoline with a minimum of 85 octane. Fresh fuel prevents gum from forming in the fuel system or on essential carburetor parts. Purchase fuel in quantity that can be used within 30 days.
• Do not use gasoline which contains Methanol.
• Do not mix oil with gasoline.
• For engine protection use Briggs & Stratton Gasoline Additive available from your Authorized Briggs & Stratton Dealer (P/N 5041 or single use pouch).
• The gasoline engine is certified to operate on gasoline. Exhaust Emission Control System: EM (Engine Modifications).

CAUTION: Some fuels, called oxygenated or reformulated gasoline, are gasoline blended with alcohols or ethers. Excessive amounts of these blends can damage the fuel system or cause performance problems. If any undesirable operating symptoms occur, use gasoline with a lower percentage of alcohol or ether.

NATURAL (NG) / LIQUID PROPANE (LPG) GAS POWERED ENGINES

• Use clean, dry fuel, free of moisture or any particulate material. Using fuels outside the following recommended values may cause performance problems.
• In engines set up to run on LPG, commercial grade HD5 LPG is recommended. Recommended fuel composition is fuel with a minimum fuel energy of 2500 BTU's/ft ^3 with maximum propylene content of 5% and butane and heavier gas content of 2.5% and minimum propane content of 90% .
• NG or LPG engines are certified to operate on natural or liquid propane gas.

WARNING

The equipment on which this engine is mounted is equipped with an automatic safety gas "fuel lock-off" valve. DO NOT operate the equipment if the "fuel lock-off" valve is missing or inoperative.

ADDING FUEL

GASOLINE POWERED ENGINES

WARNING

• Turn engine OFF and let engine cool at least 2 minutes before removing gas cap.
• Fill fuel tank outdoors or in well-ventilated area.
• Keep gasoline away from sparks, open flames, pilot lights, heat, and other ignition sources.
• If fuel spills, wait until it evaporates before starting engine.

[1] Remove cap. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion. Be careful not to overfill. Briggs & Stratton Smart-fill® Fuel Can fills to the correct level and automatically shuts off, reducing spills and emissions.

[2] Replace cap before starting.

NATURAL (NG) / LIQUID PROPANE (LPG) GAS POWERED ENGINES

• Read the operating instructions supplied by the equipment manufacturer for information on refueling natural or LP gas engine.

WARNING

• Do not use pressurized starting fluids.
• Vapors are flammable.

OIL PRESSURE SWITCH

If engine is equipped with an oil pressure switch, the switch will either activate a warning device or stop the engine when the engine runs low on oil. (Read the operating instructions supplied by the equipment manufacturer to determine how your engine is equipped.)

BEFORE STARTING - LPG / NG ENGINES

The LPG / NG mixer is equipped with solenoid, fuel inlet, 12 volt connector, and equipped for a fuel lock-off valve.

CAUTION:

When operating on LPG fuel, 12 volts MUST be supplied to the connector.

When operating on NG fuel, 12 volts MUST NOT be supplied to connector.

Failure to do so, may cause engine damage.

REWIND (MANUAL) STARTING - ALL ENGINES

[1] Check oil level (see p. 7).

Note: NG /

LPG

ENGINESE

skip steps [2] and [3].

Choke

[2] Open fuel shut-off valve (if equipped).
[3] Move choke control to CHOKE or START.

[4] Move throttle (if equipped) to FAST. Operate engine with throttle in FAST.

[5] Push rocker switch (if equipped) to ON or RUN.

[6] Grasp rope handle. Pull slowly until resistance is felt, then pull rapidly to start engine and avoid kickback.

[7] Allow engine to warm up.

Choke Equipped Engines: In warm weather temperatures, move choke control lever toward RUN slowly over several seconds, in cold weather allow engine to run smoothly before each change. Operate with choke in RUN.

STOPPING

CAUTION: Do not stop engine by moving choke control to CHOKE. Backfire, fire or engine damage could occur.

[1] Move throttle (if equipped) to SLOW, then to STOP.

[2] Push rocker switch (if equipped) to OFF or STOP.
[3] Close fuel shut-off valve (if equipped).

ELECTRIC (KEY) STARTING (if equipped) - ALL ENGINES

[1] Check oil level (see p. 7).

Note: NG /

LPG

ENGINESE

skip steps

[2] and [3].

Choke

[2] Open fuel shut-off valve (if equipped).

[3] Move choke control to CHOKE or START.

[4] Move throttle (if equipped) to FAST. Operate engine with throttle in FAST.

[5] Push rocker switch (if equipped) to ON or RUN.

[6] Insert key and turn to START.

CAUTION:

Use short starting cycles (5 seconds, wait one minute between cycles).

Follow equipment manufacturer's recommendations for charging battery.

[7] Allow engine to warm up.

Choke Equipped Engines: In warm weather temperatures, move choke control lever toward RUN slowly over several seconds, in cold weather allow engine to run smoothly before each change. Operate with choke in RUN.

STOPPING

CAUTION:

Do not stop engine by moving choke control to CHoke. Backfire, fire or engine damage could occur.

[1] Move throttle (if equipped) to SLOW, then to STOP.

[2] Turn key to OFF. Remove key and store out of reach of children.
[3] Push rocker switch (if equipped) to OFF or STOP.
[4] Close fuel shut-off valve (if equipped).

STARTING AND OPERATING TIPS - ALL ENGINES

Use correct type of oil for expected starting temperature.
Remove external equipment/engine loads. (See equipment operating instructions.)
Periodically remove any debris buildup from the machine.

After engine has started, let it warm up several seconds to several minutes, depending on outside temperature.
For maximum performance and life, operate engine throttle in FAST.

MAINTENANCE

Regular maintenance will improve the performance and extend the life of the engine. See any Authorized Briggs & Stratton Dealer for service. Use only genuine Briggs & Stratton parts. Other parts may not perform as well, may damage the engine, and may result in injury. In addition, use of other parts may void your warranty.

EMISSION CONTROL

Maintenance, replacement or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual. However, to obtain no charge repairs under the terms and provisions of the Briggs & Stratton warranty statement, any service or emission control part repair or replacement must be performed by a factory authorized dealer.

Task Perform task at hourly or calendar interval, whichever comes first.	Every 8 Hours or Daily	25 Hours or Every Season	50 Hours or Every Season	100 Hours or Every Season	Yearly
Check oil level	✓
Change oil	✓*		✓
Change oil filter (if equipped)				✓
Service air cleaner pre-cleaner		✓**
Service air cleaner cartridge				✓**
Inspect spark arrester (if equipped)			✓
Clean oil cooler (if equipped)				✓**
Clean cooling system				✓**
Clean/replace spark plugs					✓
Clean/replace in-line fuel filter (if equipped)					✓
Check valve clearance					✓
Check valve clearance on NG / LPG Engines				✓

• Change oil after first 5 to 8 hours of use, then every 50 hours or every season. Change oil every 25 hours when operating the engine under heavy load or in high temperatures.
  ** Clean more often under dusty conditions or when airborne debris is present. Replace air cleaner parts, if very dirty.

CAUTION: Used oil is a hazardous waste product. Dispos of used oil properly. Do not discard with household waste. Check with your local authorities, service center, or dealer for safe disposal/recycling facilities.

CHANGING OIL

Typical drain plug

WARNING

[1] Place engine level.
[2] Disconnect spark plug wires and keep away from spark plugs. Disconnect battery (if equipped with electric starter) at negative terminal.

[3] With engine OFF but still warm remove oil drain plug and drain oil into appropriate receptacle.
[4] Reinstall drain plug. Remove oil fill cap (if equipped).
[5] Oil filling procedure: first add 1 quart (32 ounces or 1 liter). Start and run engine at idle for 30 seconds. Shut engine off and wait 30 seconds. Then add more oil slowly to bring level to Full mark on dipstick. Do not overfill.

Note: Engine holds approximately 1-1/2 quarts (48 ounces or 1.4 liters) when changing oil and filter.

[6] Replace oil fill cap, if equipped, and dipstick.

ENGINE AND ENGINE PARTS

We recommend that you see an authorized Briggs & Stratton Service Dealer for all maintenance and service of the engine and engine parts. Use only genuine Briggs & Stratton parts.

WARNING

If you perform any maintenance on the engine, first disconnect the spark plug wires from the spark plugs, and disconnect the battery at the negative terminal (electric starter engines only) to prevent unintentional sparking. Unintentional sparking can result in fire or electric shock. Unintentional start-up can result in entanglement, traumatic amputation or laceration. Use only correct tools.

• Do not strike the flywheel with a hammer or hard object because the flywheel may later shatter during operation.
• Do not tamper with governor spring, links or other parts to increase engine speed.

CHANGING OIL FILTER (if equipped)

Change oil filter after every 100 hours or every season.

[1] Drain engine oil and remove oil filter.
[2] Before installing new filter, lightly oil filter gasket with fresh, clean oil.
[3] Screw filter on by hand until gasket contacts oil filter adapter. Tighten 1/2 to 3/4 turn more.
[4] Add fresh oil. Fill to FULL line on dipstick.
[5] Start and run engine at idle to check for leaks.
[6] Stop engine. Re-check oil level. Add oil if required.

OIL PRESSURE

If oil pressure drops below 1-4 psi (.1-.2 kg/cm²), an oil pressure switch (if equipped) will either activate a warning device or stop the engine. Check oil level with dipstick. If oil level is between ADD and FULL mark on dipstick, do not try to restart engine. Contact an Authorized Briggs & Stratton Service Dealer. Do not operate engine until oil pressure is corrected.

If oil level is below ADD mark on dipstick, add oil to bring level to FULL mark. Restart engine and check oil pressure. If pressure is normal, continue to operate engine.

Note: Oil pressure gauge, if engine is equipped, is supplied by manufacturer of equipment.

MUFFLER

Replacement parts for the muffler must be the same and installed in the same position as the original parts, otherwise fire can occur.

If muffler is equipped with spark arrester screen, remove

screen for inspection. Replace screen if damaged or plugged.

FUEL SYSTEM

Replacement parts for fuel system (cap, hoses, tanks, filters, etc.) must be the same as original parts, otherwise fire can occur.

FUEL FILTER (if equipped)

Drain fuel tank or close fuel shut-off valve before replacing fuel filter. Otherwise, fuel can leak out, creating a fire/ explosion hazard.

PART NO.493629 (WITH FUEL PUMP)

PART NO. 298090 or 5018 (WITHOUT FUEL PUMP)

AIR CLEANER

All engines have a round air cleaner cartridge. In addition, some engines have a pre-cleaner.

Pre-cleaner

To clean pre-cleaner (if equipped), separate it from cartridge and wash in liquid detergent and water. Squeeze dry in a clean cloth.

Removing/Installing Air Cleaner without Fuel Tank

[1] Unhook clips on both sides of cover and remove cover.
[2] Remove knob and plate. Carefully remove air cleaner assembly to prevent debris from entering carburetor.
[3] Reassemble clean (or new) pre-cleaner on clean (or new) cartridge.
[4] Reinstall air cleaner assembly, plate and knob.
[5] Replace cover and reattach clips to body.

CAUTION: Do not use pressurized air or solvents to clean cartridge. Pressurized air can damage cartridge; solvents will dissolve cartridge.

Removing/Installing Air Cleaner with Fuel Tank

[1] Remove knobs and cover.
[2] Remove nut, plate and carefully lift air cleaner assembly (pre-cleaner and cartridge) off stud.
[3] Reinstall clean (or new) air cleaner assembly firmly in base. Reinstall plate (top side marked "UP") and nut.
[4] Reinstall cover. Tighten knobs securely.

SPARK PLUG

Use only Briggs & Stratton Spark Tester (part number 19368) to check for spark.

Note: In some areas, local law requires using resistor spark plug to suppress ignition signals. If this engine was originally equipped with resistor spark plug, use same type for replacement.

AIR COOLING SYSTEM

Debris may clog the engine's air cooling system. Remove blower housing and clean area shown to prevent overheating and engine damage.

OIL COOLER (if equipped)

Clean oil cooler of all debris and chaff.

VALVE CLEARANCE

GASOLINE ENGINES -

Check valve clearance yearly. (See Tune-up Specifications on page 6).

NG / LPG ENGINES –

Valve clearance must be checked after every 100 hours of operation. Adjust if necessary.

MAINTENANCE

CLEANING DEBRIS

CAUTION: Do not use water to clean engine parts. Water could contaminate fuel system. Use a brush or dry cloth.

Daily or before every use, clean accumulated debris from engine. Keep linkage, springs and controls clean. Keep area around and behind muffler free of any combustible debris.

WARNING

Engine parts should be kept clean to reduce the risk of overheating and ignition of accumulated debris.

ADJUSTMENTS

CONTROL ADJUSTMENTS

WARNING

Prevent unintentional starting. Before performing adjustments:

• Remove spark plug wires from spark plugs.
• Disconnect battery at negative terminal (only engines with electric start).

TO ADJUST REMOTE CHOKE CONTROL

[1] Remove air cleaner.
[2] Move choke control to CHOKE or START position. (Carburetor choke should be completely closed.)
[3] If not, loosen casing clamp screw.
[4] Then move casing, wire and engine choke lever in direction shown until choke is completely closed.
[5] Tighten casing clamp screw. Replace air cleaner.

Linkage, Springs and Controls

Finger Guard

Rotating Screen

Muffler and Spark Arrester
SPARK RRESTER

TO ADJUST REMOTE THROTTLE CONTROL

[1] Remove air cleaner. Move throttle control to FAST. (Swivel should be against throttle stop.)
[2] If not, loosen casing clamp screw. Move casing and wire in direction shown by arrow until swivel is against throttle stop.
[3] Tighten casing clamp screw. Replace air cleaner.

TO ADJUST GOVERNED IDLE SPRING

[1] Readjust the idle speed to 1200 rpm, if governed idle spring is red, or 900 rpm, if governed idle spring is white.
[2] Release carburetor throttle lever. Move throttle control to FAST position. Engine should accelerate smoothly. If it does not, readjust idle mixture valves slightly counterclockwise.

CARBURETOR / FUEL MIXER ADJUSTMENT

WARNING

The manufacturer of the equipment on which this engine is installed specifies top speed at which the engine will be operated. DO NOT EXCEED this speed.

GASOLINE OPERATED ENGINES

The carburetor on this engine is low emission. It is equipped with an idle mixture valve with a limiter (see inset), which allows some adjustment, and an idle speed adjustment screw. DO NOT remove limiter caps. DO NOT force beyond limits. Air cleaner and air cleaner cover must be assembled to carburetor before starting engine.

TO ADJUST CARBURETOR

[1] Start engine and warm up approximately 5 minutes before adjusting.
[2] With engine running, place throttle control in SLOW.
[3] Rotate carburetor throttle lever against the idle speed screw and hold it.
[4] Turn idle speed screw to obtain 1400 rpm (1200 rpm on two barrel carburetor).
[5] While still holding carburetor throttle lever against idle speed screw, turn idle mixture valve with limiter cap screw midway between limits. DO NOT remove limiter caps. DO NOT force beyond limit.
[6] On two barrel carburetor: set cylinder #1 idle mixture valve midway between limits. Then set cylinder #2 idle mixture valve midway between limits, while holding carburetor throttle lever against idle speed screw.

Single barrel carburetor

LIMITER CAP

Two barrel carburetor

Note: Engines operated at about 3000 or higher (900 meters or higher) above sea level may require a high altitude carburetor main jet. If erratic performance is observed, contact a Briggs & Stratton Authorized Service Dealer for installation of a high altitude carburetor main jet.

If adjustment is needed, see a Briggs & Stratton Authorized Service Dealer who has been licensed by the state or local municipality (if required) in which the service is performed. Mixer adjustment requires special equipment and a qualified technician. DO NOT remove limiter caps. DO NOT force beyond limits.

SERVICE & STORAGE

SERVICE

See an Authorized Briggs & Stratton Service Dealer. Each one carries a stock of Genuine Briggs & Stratton Parts and is equipped with special service tools. Trained mechanics assure expert repair service on all Briggs & Stratton engines. Only dealers advertising as "Authorized Briggs & Stratton" are required to meet Briggs & Stratton standards.

When you purchase equipment powered by a Briggs & Stratton engine, you are assured of highly skilled, reliable service at more than 30,000 Authorized Service Dealers worldwide, including more than 5,000 Master Service Technicians. Look for these signs wherever Briggs & Stratton service is offered.

You may locate your nearest Authorized Briggs & Stratton Service Dealer in our dealer locator map on our web site www.briggsandstratton.com or in the "Yellow PagesTM" directory under "Engines, Gasoline" or "Gasoline Engines," or "Lawn Mowers" or similar category.

An illustrated shop manual includes common specifications and detailed information covering adjustment, tune-up and repair of Briggs & Stratton OHV, twin cylinder, 4 cycle engines. It is available for purchase from an Authorized Briggs & Stratton Service Dealer or you can order it from the factory. Write: Briggs & Stratton

Corporation, Attn: Service Division P. O. Box 1144, Milwaukee, WI 53201

Part No. 272144

STORAGE

Engines stored over 30 days need special attention.

[1] While engine is still warm, change oil.

[2] Remove spark plugs and pour about 1 oz. (30 ml) of engine oil into each cylinder. Replace spark plugs and crank slowly to distribute oil.

[3] Clean engine of surface debris, chaff or grass.

Store in a clean, dry area. Do not store in same area as a stove, furnace, water heater, or other appliance that uses a pilot light or has a device that can create a spark.

On Gasoline Engines: To prevent gum from forming in fuel system or on essential carburetor parts:

a) if fuel tank contains oxygenated or reformulated gasoline (gasoline blended with an alcohol or an ether), run engine until it stops from lack of fuel, or b) if fuel tank contains gasoline, either run engine until it stops from lack of fuel, or add a gasoline additive to the gas in the tank. (See parts list. Single – use pouches of gas additive are available from your service dealer.) If you use a gas additive, run the engine for several minutes to circulate the additive through the carburetor. Then, engine and fuel can be stored up to 24 months.

PARTIAL LIST OF Genuine BRIGGS & STRATTON PARTS

Part	Briggs & Stratton Part No.
Air filter cartridge (without fuel tank)	394018
(model 380400, 381400 only – use 692519)
Air filter pre-cleaner (without fuel tank)	272490
(model 380400, 381400 only – use 692520)
Air filter pre-cleaner/cartridge (without fuel tank)	5050D
(model 380400, 381400 only – use 5120A)
Air filter cartridge (with fuel tank)	393957
Air filter pre-cleaner (with fuel tank)	271794
Oil	100005 or 100028
Oil filter (3-1/2 in. long)	491056
Oil filter (2-1/4 in. long)	492932 or 5049

Part	Briggs & Stratton Part No.
Fuel filter (with fuel pump)	493629
Fuel filter (without fuel pump)	298090 or 5018
Fuel filter (with fuel tank)	808116
Gas additive	5041
Resistor spark plug (Champion RC12YC)	491055
Resistor spark plug (Champion RC14YC)	496018
Long life platinum spark plug (used on most OHV engines)	5066
Spark plug wrench	19374
Spark tester	19368
Oil pump kit	5056
(uses standard electric drill to remove oil from engine quickly)

LIMITED WARRANTY

Briggs & Stratton Corporation will repair or replace, free of charge, any part(s) of the engine that is defective in material or workmanship or both. Transportation charges on parts submitted for repair or replacement under this warranty must be borne by purchaser. This warranty is effective for the time periods and subject to the conditions stated below. For warranty service, find the nearest Authorized Service Dealer in our dealer locator map at www.briggsandstratton.com, or by calling 1-800-233-3723, or as listed in the 'Yellow PagesTM'.

THERE IS NO OTHER EXPRESS WARRANTY. IMPLIED WARRANTYES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR FROM PURCHASE, OR TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED WARRANTY ARE EXCLUDING. LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXCLUDING TO THE EXTENT EXCLUSION IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states or countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state and country to country.

OUR PRODUCT

Vanguard™

ELS

I/C

Industrial Plus™

IntekTM

(Sleeve Bore)

FourceTM

Intek

(Kool Bore)

Power Built™ OHV

Quantum®

QuattroTM

Q45TM

SprintTM

ClassicTM

EtekTM

WARRANTY PERIOD*

Consumer Use

Commercial Use

2 years

2 years

1 year

2 years

90 days

1 year

90 days

1 year

• Note the following special warranty periods: 2 years for Classic™ engines in the European Union and Eastern European countries, for all consumer products in the European Union, and for emission control systems on engines certified by EPA and CARB. 5 years for consumer use, 90 days for commercial use of Touch-N-Mow® starter on Quantum® and Intek™ engines. Engines used in competitive racing or on commercial or rental tracks are not warranted.

The warranty period begins on the date of purchase by the first retail consumer or commercial end user, and continues for the period of time stated in the table above. "Consumer use" means personal residential household use by a retail consumer. "Commercial use" means all other uses, including use for commercial, income producing or rental purposes. Once an engine has experienced commercial use, it shall thereafter be considered as a commercial use engine for purposes of this warranty.

NO WARRANTY REGISTRATION IS NECESSARY TO OBTAIN WARRANTY ON BRIGGS & STRATTON PRODUCTS. SAVE YOUR PROOF OF PURCHASE RECEIPT. IF YOU DO NOT PROVIDE PROOF OF THE INITIAL PURCHASE DATE AT THE TIME WARRANTY SERVICE IS REQUESTED, THE MANUFACTURING DATE OF THE PRODUCT WILL BE USED TO DETERMINE THE WARRANTY PERIOD.

ABOUT YOUR ENGINE WARRANTY

Briggs & Stratton welcomes warranty repair and apologizes to you for being inconvenienceed. Any Authorized Service Dealer may perform warranty repairs. Most warranty repairs are handled routinely, but sometimes requests for warranty service may not be appropriate. For example, warranty would not apply if engine damage occurred because of misuse, lack of routine maintenance, shipping, handling, warehousing or improper installation. Similarly, warranty is void if the serial number of the engine has been removed or the engine has been altered or modified.

If a customer differs with the decision of the Service Dealer, an investigation will be made to determine whether the warranty applies. Ask the Service Dealer to submit all supporting facts to his Distributor or the Factory for review. If the Distributor or the Factory decides that the claim is justified, the customer will be fully reimbursed for those items that are defective. To avoid misunderstanding which might occur between the customer and the Dealer, listed below are some of the causes of engine failure that the warranty does not cover.

Normal wear:

Engines, like all mechanical devices, need periodic parts service and replacement to perform well. Warranty will not cover repair when normal use has exhausted the life of a part or an engine.

Improper maintenance:

The life of an engine depends upon the conditions under which it operates, and the care it receives. Some applications, such as tillers, pumps and rotary mowers, are very often used in dusty or dirty conditions, which can cause what appears to be premature wear. Such wear, when caused by dirt, dust, spark plug cleaning grit, or other abrasive material that has entered

the engine because of improper maintenance, is not covered by warranty.

This warranty covers engine related defective material and/or workmanship only, and not replacement or refund of the equipment to which the engine may be mounted. Nor does the warranty extend to repairs required because of:

1. PROBLEMS CAUSED BY PARTS THAT ARE NOT ORIGINAL BRIGGS & STRATTON PARTS.
2. Equipment controls or installations that prevent starting, cause unsatisfactory engine performance, or shorten engine life. (Contact equipment manufacturer.)
3. Leaking carburetors, clogged fuel pipes, sticking valves, or other damage, caused by using contaminated or stale fuel. (Use clean, fresh, lead-free gasoline and Briggs & Stratton Fuel Stabilizer, Part No. 5041.)
4. Parts which are scored or broken because an engine was operated with insufficient or contaminated lubricating oil, or an incorrect grade of lubricating oil (check oil level daily or after every 8 hours of operation. Refill when necessary and change at recommended intervals.) OIL GARD® may not shut down running engine. Engine damage may occur if oil level is not properly maintained. Read Operating & Maintenance Instructions.
5. Repair or adjustment of associated parts or assemblies such as clutches, transmissions, remote controls, etc., which are not manufactured by Briggs & Stratton.
6. Damage or wear to parts caused by dirt, which entered the engine because of improper air cleaner maintenance, re-assembly, or use of a non-original air cleaner element or cartridge. (At recommended

intervals, clean and re-oil the Oil-Foam ⑧ element or the foam pre-cleaner, and replace the cartridge.) Read Operating & Maintenance Instructions.

1. Parts damaged by over-speeding, or overheating caused by grass, debris, or dirt, which plugs or clogs the cooling fins, or flywheel area, or damage caused by operating the engine in a confined area without sufficient ventilation. (Clean fins on the cylinder, cylinder head and flywheel at recommended intervals.) Read Operating & Maintenance Instructions.
2. Engine or equipment parts broken by excessive vibration caused by a loose engine mounting, loose cutter blades, unbalanced blades or loose or unbalanced impellers, improper attachment of equipment to engine crankshaft, over-speeding or other abuse in operation.
3. A bent or broken crankshaft, caused by striking a solid object with the cutter blade of a rotary lawn mower, or excessive v-belt tightness.
4. Routine tune-up or adjustment of the engine.
5. Engine or engine component failure, i.e., combustion chamber, valves, valve seats, valve guides, or burned starter motor windings, caused by the use of alternate fuels such as, liquified petroleum, natural gas, altered gasolines, etc.

Warranty is available only through service dealers which have been authorized by Briggs & Stratton Corporation. your nearest Authorized Service Dealer is listed in the "Yellow PagesTM" of your telephone directory under "Engines, Gasoline" or "Gasoline Engines," "Lawn Mowers," or similar category.

Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB)

and the United States Environmental Protection Agency (U.S. EPA)

Emission Control System Warranty Statement (Owner's Defect Warranty Rights and Obligations)

EMISSION CONTROL WARRANTY COVERAGE IS APPLICABLE TO CERTIFIED INGENES PURCHASED IN CALIFORNIA IN 1995 AND THERE- AFTER, WHICH ARE USED IN CALIFORNIA, AND TO CERTIFIED MODEL YEAR 1997 AND LATER INGENES WHICH ARE PURCHASED AND USED ELSEWHERE IN THE UNITED STATES (AND AFTER JANUARY 1, 2001 IN CANADA).

California and United States Emission Control Defects Warranty Statement

The California Air Resources Board (CARB), U.S. EPA and B&S are pleased to explain the Emission Control System Warranty on your model year 2002 and later small off-road engine (SORE). In California, new small off-road engines must be designed, built and equipped to meet the State's stringent anti-smog standards.

Elsewhere in the United States, new non-road, spark-ignition engines certified for model year 1997 and later must meet similar standards set forth by the U.S. EPA. B&S must warrant the emission control system on your engine for the periods of time listed below, provided there has been no abuse, neglect or improper maintenance of your small off-road engine.

Your emission control system includes parts such as the carburetor, air cleaner, ignition system, muffler and catalytic converter. Also included may be connectors and other emission related assemblies.

Where a warrantable condition exists, B&S will repair your small off-road engine at no cost to you including diagnosis, parts and labor.

Briggs & Stratton Emission Control Defects Warranty Coverage

Small off-road engines are warranted relative to emission control parts defects for a period of two years, subject to provisions set forth below. If any covered part on your engine is defective, the part will be repaired or replaced by B&S.

Owner's Warranty Responsibilities

As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your Operating and Maintenance Instructions. B&S recommends that you retain all your receipts covering maintenance on your small off-road engine, but B&S cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.

As the small off-road engine owner, you should however be aware that B&S may deny you warranty coverage if your small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

You are responsible for presenting your small off-road engine to an Authorized B&S Service Dealer as soon as a problem exists.

The undisputed warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding your warranty rights and responsibilities, you should contact a B&S Service Representative at 1-414-259-5262.

The emission warranty is a defects warranty. Defects are judged on normal engine performance. The warranty is not related to an in-use emission test.

Briggs & Stratton Emission Control Defects Warranty Provisions

The following are specific provisions relative to your Emission Control Defects Warranty Coverage. It is in addition to the B&S engine warranty for non-regulated engines found in the Operating and Maintenance Instructions.

1. Warranted Parts

Coverage under this warranty extends only to the parts listed below (the emission control systems parts) to the extent these parts were present on the engine purchased.

a. Fuel Metering System

Cold start enrichment system
- Carburetor and internal parts
Fuel Pump

b. Air Induction System

Air cleaner
Intake manifold

c. Ignition System

Spark plug(s)
- Magneto ignition system

d. Catalyst System

Catalytic converter
- Exhaust manifold
Air injection system, Pulse valve

e. Miscellaneous Items

Vacuum, temperature, position, time sensitive valves and switches
- Connectors and assemblies

1. Length of Coverage

B&S warrants to the initial owner and each subsequent purchaser that the Warranted Parts shall be free from defects in materials and workmanship which caused the failure of the Warranted Parts for a period of two years from the date the engine is delivered to a retail purchaser.

1. No Charge

Repair or replacement of any Warranted Part will be performed at no charge to the owner, including diagnostic labor which leads to the determination that a Warranted Part is defective, if the diagnostic work is performed at an Authorized B&S Service Dealer. For emissions warranty service contact your nearest Authorized B&S Service Dealer as listed in the "Yellow Pages" under "Engines, Gasoline," "Gasoline Engines," "Lawn Mowers," or similar category.

1. Claims and Coverage Exclusions

Warranty claims shall be filed in accordance with the provisions of the B&S Engine Warranty Policy. Warranty coverage shall be excluded for failures of Warranted Parts which are not original B&S parts or because of abuse, neglect or improper maintenance as

set forth in the B&S Engine Warranty Policy. B&S is not liable to cover failures of Warranted Parts caused by the use of add-on, non-original, or modified parts.

5. Maintenance

Any Warranted Part which is not scheduled for replacement as required maintenance or which is scheduled only for regular inspection to the effect of "repair or replace as necessary" shall be warranted as to defects for the warranty period. Any Warranted Part which is scheduled for replacement as required maintenance shall be warranted as to defects only for the period of time up to the first scheduled replacement for that part. Any replacement part that is equivalent in performance and durability may be used in the performance of any maintenance or repairs. The owner is responsible for the performance of all required maintenance, as defined in the B&S Operating and Maintenance Instructions.

1. Consequential Coverage

Coverage hereunder shall extend to the failure of any engine components caused by the failure of any Warranted Part still under warranty.

Briggs & Stratton Engines Are Made Under One Or More Of The Following Patents: Design D-247,177 (Other Patents Pending)
6,325,036	6,077,063	5,819,513	5,606,948	5,497,679	5,235,943	5,138,996	4,996,956	4,633,556	4,430,984
6,284,123	6,064,027	5,813,384	5,606,851	5,320,795	5,197,425	5,086,890	4,977,879	4,630,498	DES. 308,871
6,260,529	6,014,808	5,765,713	5,548,955	5,271,363	5,197,422	5,070,829	4,971,219	4,522,080	DES. 309,457
6,230,678	5,894,715	5,645,025	5,546,901	5,269,713	5,191,864	5,058,544	4,895,119	4,520,288	DES. 356,951
6,202,616	5,852,951	5,642,701	5,503,125	5,265,700	5,188,069	5,040,644	4,819,593	4,512,499	DES. 361,771
6,116,212	5,823,153	5,619,845	5,501,203	5,243,878	5,186,142	5,009,208	4,719,682	4,453,507	DES. 375,963