Independent 2300 - Pressure washer Lavor - Free user manual and instructions

USER MANUAL Independent 2300 Lavor

WARNING: read the instructions carefully before use. ATTENTION:

I. Engine oil page 27

II. Oil in the reduction gear box page 27

III. Air cleaner page 28

IV. Fuel and fuel tank page 28

Starting of the engine page 29 Operation page 30 Stop page 31 Exhaust control system page 31

Transport, storage and removal from storage page 35

III. Removal from storage page 36

Troubleshooting page 37

I. Starting engine difficultly page 37

III. Gasoline engine cannot run

V. Gasoline engine is excessively

VI. There is abnormal noise when

engine running page 40 Specifications page 41

I. Main specifications page 41

II. Timing of distribution page 41

III. Tightening torque of

B1 Nero Y Giallo G Verde25 PREFACE Thank you for choosing a general gasoline engine by our company. Based on the latest engine technology at home and abroad, our Co. has individually developed general gasoline engines with 4-stroke single cylinder, OHV and forced-air cooling. The engines is characterized by advanced design, compact structure, reliable performance, convenient service lowfuel comsumption and easy speed adjustment. They are widely used as ideal power in many fields such as generating set, tour, open working, public place of entertainment, construction machine, agricultural machinery, etc. The vital part bodies including cylinder cover, crankcase, etc, are all cast formed with aluminum alloy. Laser-scanning technology, 3D shaping technology and CN program processing technology used in the mould production upgrade the engine surface and manufacturing accuracy obviously. Applying auto-press reducing system and centrifugal fly hammer regulating system assure that assemblies equipped with the engine function smoothly and reliably as well as the engine start easily. Besides, the introuduction of the lubricant film-sensing protection system prevents accidental damage of the engine for poor lubri cation. The manual gives information with respect to operation and maintenance of the general gasoline engine, and be sure to read it carefully first before operating. All the materials and diagrams of this manual are in accordance with the newest products at the publishing time. Due to revision and other change, the information descried in this man ual may be a little different form the actual status. The copyright of this manual belongs to our Co., any group or individual is forbidden to reprint or copy any it. The manual is subject to change without notice. Please pay special attention to statements preceded by the following words. SYMBOLS WARNING A warning is used to alert the user to fact that hazardous operating and maintenance procedures may result in injury to or death of personnel if not strictly observed. CAUTION A caution is used to alert the user to fact that hazardous operating and maintenance procedures may result in damage to or destruction of equipment if not strictly observed. NOTE A note is used to give helpful information. SAFETY PRECAUTIONS WARNING Before operating the engine, be sure to read and familiar with the manual carefully, otherwise injury to personnel or damage to equipment may occur. Please pay special attention to the following:

1. Running the engine in a well ventilated place, keep it at least one meter away from building walls

or other equipments, keep away from inflammables such as gasoline, matches and so on to avoid possibility of fire.

2. Keep the engine out of reach of children and pets to avoid accidents.

3. Operator on the engine has been specially trained.

4. Refuel in a well- ventilated area with the engine stopped, and in places refueling or storing gasoline,

no smoking and any flames or sparks.

5. Refuel the fuel tank not too full so as to avoid fuel’s spilling out. If there is spilled fuel around, be sure

to clean it thoroughly before starting.

6. Locate the engine on a level -working platform to avoid fuel’s spilling out.

7. Make sure the fuel filler cap is tightened securely.

8. The exhaust muffler is very hot during running the engine even after the engine stops. Never touch

it, or you may get burns. Transport or store the engine with it cooling down entirely. EN26 CONTROL CONNECTION OF REMOTE DISTANCE (OPTION) The holes in levers of both the choke and throttle valve are used for mounting op tioned steel wires. Fig. 2, 3 & 4 shown illustrate how to mount a solid steel wire and a meshed steel wire. If choosing a Accessory Options: meshed steel wire, a return spring is added. If necessary, you may un screw the damping nut on the throttle valve lever slightly when controlling the throttle valve by a remote - controlled steel wire. Accessory options: Remote-controlled throttle: fig. 1 Throttle lever Air cleaner Choke lever Muffler Fuel cock Spark plug Drain plug Drain plug Engine switch Fuel tank Fuel tank cap Dipstick Oil plug Drain plug Kick-starter Starting rope handle Exhausting-pipe PARTS DESCRIPTION The main parts of engine are located as follows (Fig.1) fig. 2 Stiff steel wire Throttle valve lever Flexible steel wire 4mm screw Steel wire fixer Snap ringStiff steel wire fig. 3 Return spring Damping nut of throttle valve lever EN27 Remote-controlled choke: fig. 4 Choke lever Steel wire fixer PRE-OPERATION INSPECTION

CAUTION t Engine oil is a key factor in deciding the engine’s performance. Do not apply engine oil with additives or 2–stroke gasoline engine oil, as they haven’t enough lubrication, which may shorten the engine’s service life. t Check the engine with it stopped on a level ground. SAE15W-40 (Fig. 5) is recommended for general, all temperature use. As viscosity varies with regions and temperatures, so the lubricant has to be selected in accordance with our recommendation. Check (Fig. 6).

1. Ensure that the engine is stopped on a level ground.

2. Remove the dipstick and clean it.

3. Reinsert the dipstick into the oil filler without

screwing in, and check oil level.

4. If the oil level is too low, add the recommended

engine oil to the oil filler nick.

5. Reinstall the dipstick.

CAUTION Run with insufficient engine oil may damage the engine severely.

II. OIL IN THE REDUCTION GEAR

BOX (only for model equipped with it) 1/2 Reduction gear box with an auto centrifugal clutch. Brand of the oil is the same as that of engine oil. Oil capacity: 0. 50 liters Check the oil level in the following order (Fig. 7):

1. Remove the dipstick and clean it.

2. Reinsert the dipstick without screwing it in,

and then take out it and check oil level.

3. If the oil level is too low, add the recommended

engine oil until it arrives the upper level mark.

4. Reinstall the dipstick.

Dismantle the air cleaner housing and check its filter element, make sure it is clean and intact, otherwise clean or re place it.

2. DUST-COLLECTING TYPE (Fig. 9)

Dismantle the dust-collecting hood and check the a) core of the air cleaner, make sure it is clean and intact, other wise clean or replace it. Check if dust exists inside the dust-collecting hood, b) if any, clear away.

3. SEMI-DRY TYPE (Fig. 10)

a) Remove the air cleaner housing and check the filter element for dirt and impurity. Clean or replacement shoule be done if necessary. b) Check the air cleaner for dirt, and remove it if any.

4. OIL-BATH TYPE (Fig. 11))

a) Dismantle the air cleaner housing and check its core, make sure it is clean and intact, otherwise clean or replace it. b) Check oil level and oil quality. If the oil level is too low, add recommended engine oil to oil level mark. CAUTION Never run the engine without an air cleaner, or severe wear of the engine may occur.

The engine must apply unleaded gasolinge with an octane number over 86. Using unleaded gasoline will decrease the possibility of poducing carbon deposit and prollong the engine’s service life. Never apply used or polluted gasoline or a maixture of gassoline and engine oil. Make sure the fuel is free ofdirt and water.

2. GASOLINE CONTAINING ALCOHOL

If you decide to use a gasoline containing alcohol( fule blend), be sure its octane rating it at least as high as that recommended by the company. There are two types of ”gasohol”. One contains ethanol, and the other contains methanol. Neither gasoline containing more than 10% ethanol nor 5% methanol is allowed to be used. If methanol content in the fuel blend exceeds 5%, it may bring bad effect on the engine performance, besides, it may damage metals, rubber and plastic parts. Air cleaner housing Filter element fig. 8 Air cleaner housing Filter element Dust-collecting hood fig. 9 Oil level mark fig. 11 Filter element Air cleaner housing fig. 10 EN29 CAUTION t)BOEMFGVFMXJUIDBSFCFDBVTFJUDBOEBNBHFQMBTUJDBOEQBJOUFETVSGBDFT t*UJTOPSNBMXIFOZPVIFBSPDDBTJPOBMMZMJHIUTQBSLLOPDLPSQJOLJOHXJUIUIFFOHJOF running under heavy load. t4IPVMETQBSLLOPDLPSQJOLJOHCFIFBSEBUBTUFBEZTQFFEVOEFSOPSNBMMPBEDIBOHFCSBOEPG gasoline; if such phenomenon still happens, consult your dealer for help, oth erwise, the engine may be damaged.

Remove the fuel filler cap and a) check fuel level. If the fuel level is too low, refuel b) the tank. Remember adding fuel not over the fuel filter shoulder (Fig. 12). WARNING t Gasoline is extremely flammable and is explosive under certain conditions. Refueling in a well–ventilation area with the engine stopped. Do not smoke and allow flames or sparks in the area where gasoline is stored or where the fuel tank is refueled. t Do not overfill the tank (there should be no fuel in the filler neck). After refueling, make sure the fuel tank cap is set back securely. t Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any fuel is spilled, make sure the area is dry enough before starting the engine. t Avoid repeated or prolonged contact with skin or breathing of fuel vapor. t Keep out of reach of children.

NOTE If the engine is hot, closing the choke is unnecessary. fig. 12 Upper fuel level

a) Push the engine switch to “ON”. b) Pull slightly the starting rope handle up until feeing anti- action, and then make a rapid pull. CAUTION Releasing the handle suddenly may make it hitting the engine. Release the handle slowly conforming with its recoiling force. OPERATION

1. Preheat the engine and push back the choke

lever to “OPEN” (Fig.17). NOTE Engine Oil Alarm The engine oil alarm is designed to alarm the user the fact that the engine oil in the crankcase is insufficient. Run with insufficient engine oil may damage the engine. Once oil level in the crankcase is too low , the engine oil alarm will stall the engine automati cally to make it free of damage while the engine switch is still at “ON”. CAUTION If the engine still fails to work, check the engine oil level first before go to other check items. NOTE Operating on Highlands On highlands, the standard mixture ratio is relatively too big so the engine perfor mance may be impaired while the fuel consumption may increase. This problem can be solved as follows: replace the main jet of carburetor with smaller one, then, adjust the idle screw. If always using on highlands with a height above sea level of 1830 meters, ask your dealer for doing the job. The engine power will decrease by about 3.5% with every 305 meters up in height, even the proper main jet is used. CAUTION The engine equipped with the main jet applicable to highlands may be damaged seriously in area below specified altitude, because its mixture ratio is too thin, output drops and the engine overheats for operation in low altitude area. In the case, ask your dealer to recover the engine to its normal technical status. Engine switch fig. 16 Engine switch Starting rope handle

1. Push the engine switch to “OFF” (Fig. 20).

2. Set the fuel switch to “OFF” (Fig. 21).

EXHAUST CONTROL SYSTEM

With the engine running, carbon monoxide, oxide of nitrogen and hydrocarbon will produce, and in certain conditons, oxide of nitrogen and hydrocarbon will react chemically each other to make smoke while carbon monoxide is toxic, so exhaust control of them is very important. The company decreases the exhaust emissions by introducing poor-fuel carburetors and other devices into the engine to solve the problem. To keep the exhaust of your engine within the standard exhaust emissionvalues,pay attention to the following:

Maintain the engine periodically in accordance with the Maintenance Schedule in the manual. The maintenance schedule is made out on the base of normal use in normal conditions, ifusing under heavy load, dusty or wet circumstances or in high temperature, more freguent maintenance will be necessary.

II. REPLACEMENT OF PARTS

We recommmend that you should choose such parts which are manufactured by our Co. or equivalent to these in quality as replacement ones. Replacement without so high quality may impair the exhaust control system in effectiveness.

Modifying the exhaust control system may make actual exhaust emissions exceeding statutory limit values. Illegal modification is as follows: Dismantle or modify any part of air inlet or outlet system.1. Modify or take offspeed2.

adjusting connection device or speed adjustment device to result in the engine’s running outside the set parameters.

IV. PROBLEMS AFFECTING EXHAUST EMISSIONS

1. Difficult starting or difficult stopping.

3. Give off black smoke or consume too much fuel.

4. Poor ignition sparks or sparks returned.

5. Ignition is too advanced.

To keep the engine in a sound condition, the user should maintain it according to the table below: Frequency Item Each time First month or 20 hrs Each season or 50 hrs Each 6-month or 100 hrs Each year or 300 hrs Engine oil Oil level check √ Replace √ √ Reduction gear oil Oil level check √ Replace √ √ Air cleaner Check √ Clean

Fuel tank & fuel filter Clean

Fuel supply line Check Every two years (do a replacement if necessary) CAUTION Use only parts manufactured by the company or equivalents in quality; otherwise damage to engine may occur. NOTES

• Only for inside-ventilating double-core carburetors. ** Only for paper core air cleaners.

More often than that in the schedule if in dusty circumstances.

The items should be done by your dealer unless you are specially trained and is well equipped with tools. WARNING Stall the engine before service. If service is required with the engine running, be suere to keep good ventilation in the area. The exhaust emissions from the engine contain toxic carbon monoxide, inbreathing of it may do harm to personnel and even result in death of personnel.

1. REPLACEMENT OF ENGINE OIL

A still hot engine is helpful to drain out the engine oil in the crankcase rapidly and entirely. EN33 Turn off the oil filler cap and drain plug to drain

engine oil thoroughly. Reinstall the drain plug and screw in securely (Fig. 22). Fill the specified engine oil to the upper lever mark.

Reinstall the oil filler cap. Engine oil capacity of

the 1/2 re duction gear box is 0.5 liters; engine oil capacity of the crankcase is liters 0,60 l. (5,5 hp); 1,1 l. (7-9-11hp) NOTE Do not dump oil containers or discarded engine oil into rubbish boxes or onto the groud. For the sake of environmental protection, we suggest you take in dis- carded engine oil with a closed container and bring to local recycling station.

2. SERVICE OF AIR CLEANER

A dirty air cleaner may block enough air’s flowing into the carburetor. To keep the carburetor in good working conditions, please service the air cleaner peri- odically. If operating the engine in extremely dusty area, the job should the done more often. WARNING Never clean the air cleaner core in gasoline or low flash-point detergents, or explosion may happen. CAUTION Never run the engine without an air cleaner, or air with dirt and dust may enter the engine so speed the engine’s wear. Double-core type (Fig. 23) Unscrew the wing nut, dismantle the air cleaner housing. Check the two cores for dam age. If any, replace with new one. a) Foam filter element: clean with home detergents and warm water (or non-flammable of high flash-point cleaning solvents ) and dryup, then soak in clean engine oil until saturated. Squeeze out excess oil, otherwise, the engine will discharge smoke in starting stage. b) Paper filter element: knock the core against a solid plane to get rid of accumulated dust or blow out dust from inside to outside with high-pressure air flow (not more than30 psi). Never clean with a brush, as burshing may force the dust into the core fiber. If the core is extremely filthy, replace it with a new one. Dust-collecting type (Fig. 24) Unscrew the wing nut, dismantle the air cleaner housing, check the two cores for dam age. If any, replace damaged core with new one. a) Foam filter element: clean with home detergents and warm water (or non-flammable or high flash-point cleansing solvents) and dry up, then soak in clean engine oil until sat urated. Squeeze out excess oil, otherwise, the engine will discharge smoke in starting stage. Dipstick Drain plug Dipstick Drain plug fig. 22 fig. 23 Wing nut Air cleaner housing Paper filter element Foam filter element fig. 24 Wing nut Pre-air cleaner cover Projection of air inlet Dust-collecting cup Groove Air guide Paper filter element Foam filter element EN34 b) Paper filter element: knock the core againt a solid plane to get rid of accumulated dust or blow out dust from inside to outside with high-pressure air flow (not more than 30 psi). Never clean with a brush, as brushing may force the dust into the core fiber. If the core is extremely filthy, replace it with a new one. c) Clean the dust-collecting cup: turn off the three special semi-round screws and re move the cup, wash parts with water and then dry up. Install it to original position. CAUTION t5IFEVTUDPMMFDUJOH DPSFTIPVMECFTPJOTUBMMFEUPNBLF sure that the projection of air inlet just fits into the groove in the pre-air cleaner cover. t*OTUBMMUIFBJSHVJEFJODPSSFDUPSEFS Semi-dry type (Fig. 25) a) Unscrew the wing nut, remove the air cleaner housing, then take out the filter element. b) Clean the filter element with non-flammable or high flash-point cleansing solvents, and dry it up. c) Soak the core in clean engine oil until saturated. Squeeze excess iol, otherwise the engine will discharge smoke in starting stage. d) Install the parts to original position. Oil bath type (Fig. 26) a) Remove the wing nut and air cleaner housing, and take out the filter element. Check if both the cores are damaged. If any, replace it with new one. b) Clean the bores with home detergents(or high flash-point cleansing solvents) and warm water,and dry them up. c) Soak them in clean engine oil,until saturated. Squeeze excess oil, or the engine will discharge smoke in starting stage. d) Empty the air cleaner housing ofoil, clear away the dust inside with non-flammable or high flash-point cleansing solvents, and dry it up. e) Fill the air cleaner housing with the specified engine oil to the standard oil level mark. f) Fit the parts to original position.

3. WASHING OF DEPOSIT CUP (Fig. 27)

Set the fuel switch at “OFF”, remove the deposit cup and O-ring. Wash them in non-flammable or high flash-point cleansing solvents, and then dry them up, at last, carry out reinstallation. Set the fuel switch to “ON” and check for leaks. WARNING t(BTPMJOFJTFYUSFNFMZnBNNBCMFBOEFYQMPTJWFJO certain conditions. Keep cigarette, sparks and open flames away. t"GUFSSFJOTUBMMJOHUIFEFQPTJUDVQDIFDL JUGPSMFBLBHFBOE make sure the area around the engine is dry enough.

4. SPARK PLUG (Fig. 28)

Spark plug type: BP6ES, BPR6ES (NGK) or NHSPLD F6RTCU. Proper spark plug clearance ensures the engine’s normal running under no deposit around the spark plug. a) Remove the spark plug by means of spark plug wrench. WARNING Be careful not to touch the muffler during or just after running the engine. fig. 25 Wing nut Air cleaner housing Filter element fig. 26 Wing nut Air cleaner housing Filter element fig. 27 O-ring Deposit cup fig. 28 Spark plug wrench EN35 b) Clean the spark plug with a steel brush. If the insu lator is damaged, replace the spark plug instead. c) Measure the spark plug clearance with a feeler. The clearance should be 0.7~0.8 mm (Fig.29). If adjust ment is necessary, bend the side electrode carefully. d)Check if the spark plug gasket is in good conditions, or replace with a new one. Screw on the spark plug to the bottom first by hand and then tighten it up by a spark plug wrench. If a new spark plug is used, twist 1/2 more turns after impacting the gasket; if reinstall the original one, just twist 1/8~1/4 more turns. CAUTION t5IFTQBSL QMVHNVTUCFUJHIUFOFETFDVSMZPSJUNBZ become very hot to damage the engine. t0OMZVTFSFDPNNFOEFETQBSLQMVHPSUIFFRVJWBMFOU Incorrect heat range of the spark plug may damage the engine.

5. SPARK ELIMINATOR (option)

The spark eliminator should be serviced at least once every 100 hour’s operation so as to keep it in a sound condition. WARNING The muffler is very hot during running the engine and even a long time after stop ping. Never touch it, or you may get burns. Service after the engine cools down. a) Unscrew two nuts M4, and remove the exhaust elbow from the engine body (Fig. 30). b) Turn off five screws M5 from the muffler guard and take out the latter. c) Turn off screw M4 from the spark eliminator and separate it from the muffler. d) Clear away carbon deposit from the spark eliminator mesh with a brush. e) Reinstall the spark eliminator in reverse or der of removal. CAUTION t #F DBSFGVM OPU UP EBNBHF UIF NFTI PG UIF TQBSL eliminator. t/FWFSVTFBEBNBHFETQBSLFMJNJOBUPS

6. ADJUSTMENT OF CARBURETOR IDLING

a) Start and preheat the engine until arriving at its normal working temperature (Fig. 31). b)Obtain standard idling by adjusting the throttle fixing screw under the engine runs at a low speed. Standard idling:1700±150rpm.

Transport with the fuel switch turned off. Transport or store the engine when it is cool so as to avoid getting burns or fire. CAUTION Do not incline the engine so as to avoid spilling fuel. Spilled fuel or fuel vapor may ignite to cause fire. fig. 29

If the engine is not kept in use for a long time, be sure to store it properly. Make sure the storage area is dry and free of dust. Replace engine oil (Fig. 32).1. Disconnect the spark plug. Fill a spoon of fresh engine oil 2. from the sprak plug mount hole into the cylinder. Rotate the engine to distribute engine oil evenly, followed by fitting the sprak plug to original position. Pull the starting rope slowly until feel a slight anti-action, 3. and then keep pulling so as to align the arrow of the starting sleeve with the hole of the starter. At this time, both the inlet and outlet valves are closed so to help prevent the engine inside from rusting (Fig. 33). Cover the engine so keep dust away.4.

III. REMOVAL FROM STORAGE

Before reusing, service the engine in accordance with the instructions of the table. Storage time Service item Within one month One - two months Drain out original fuel of the fuel tank and refuel. Two months - one year Drain out original fuel of the fuel tank and refuel; Drain out fuel in the carburetor

Above one year Drain out original fuel of the fuel tank and refuel; Empty the fuel cup in the carburetor

Move the engine from the storage place, fill it with fuel, then start up it.

Screw off the drain plug and drain out fuel in the carburetor.

Turn off the engine switch first, disconnect the deposit cup and empty it. Note: For the sake of environmental protection, we recommend to fill the discarded fuel into a closed container and bring to local recycling station. Never pour freely. WARNING Fuel is extremely flammable and explosive under certain conditions. Keep cigarette, open flames and sparks away from operating site. Drain plug fig. 32 Deposit cup fig. 33 Align the arrow of the starting sleeve with the hole in the starter EN37 TROUBLESHOOTING

1. Something wrong with the fuel

system. There is no enough fuel in fuel tank or fuel cock is closed. Fill fuel, open fuel cock.

2. Fuel supply is blocked or on fuel.

Normal cylinder compression Normal spark Air vent in the fuel filler cap is clogged. Dredge air vent. Fuel cock is clogged. Clean first and then dredge. Improper or clogged main jet. Readjust or clean, blow to get through. Needle valve is closed improp- erly or start hole is clogged. Dismantle needle valve and re- pair, clean, blow to get through. Floater is damaged or sticking. Repair floater.

1. Something wrong with the fuel

system. Normal cylinder compression Normal spark Fuel flows easily and smoothly Fuel is filthy or deteriorated. Replace. There is water in fuel. Replace. Too much fuel in engine cylin- der. Drain extra fuel, dry up spark plug eletrodes. Wrong fuel brand. Select proper fuel brand corre- sponding with requirements.

1. Spark plug is in bad condition.

Normal cylinder compression Normal fuel supply Normal high-pressure coil spark Too much carbon fouling and dirt around electrodes. Clear away. Electrodes are burn damaged seriously or insulators damaged. Replace spark plug. Improper electrodes gap. Adjust to proper value.

1. No high-pressure coil spark

Normal cylinder compression Normal fuel supply Norm spark plug High-pressure coil is damaged. Replace. Ignition coil damaged. Replace. Magneto loses magnetism. Replace. 1.Poor cylinder compression Normal fuel supply system Piston ring is so worn to over its wear limit. Replace a set of piston rings. Piston ring is sticking. Clear up carbon fouling. Piston ring is broken. Replace. Normal ignition system Spark plug is not installed tighten or without a gasket. Tighten with a gasket in. Air leakage between cylinder block and cylinder. Check cylinder gasket and the flatness of the surface by which cylinder black contacting with cylinder head; tighten cylinder bolts in the order to stipulated torque. Air leakage in valve. Check valve clearance and thightness, repair if necessary. EN38 WARNING t8IFOUFTUJOHUIFTQBSLQMVHOFWFSIPMEUIFIJHIWPMUBHFXJSFPGUIFTQBSLQMVHXJUI wet hand. t.BLFTVSFUIFSFJTOPTQJMMFEGVFMPVUTJEFUIFFOHJOFBOEUIBUUIFTQBSLQMVHJTOUEJQQFEXJUI fuel. t5PQSFWFOUmSFLFFQTQBSLTGBSBXBZGSPNUIFTQBSLQMVHNPVOUIPMF Having fulfilled all the check items above, if the engine still fails to work, contact your dealer for help.

When turning throttle greater, speed increase responds slow- ly or speed is decreased even engine stops. Ignition sys- tem. Incorrect ignition time. Readjust ignition advance angle. Fuel supply system. Air in fuel line of fuel line clogged. Exhaust air or dredge fuel line. Main jet is not adjusted properly. Readjust. In carburetor, needle valve hole and main jet clogged. Clean and blow to get through. Fuel cock is clogged up. Clean, replace damage part. Too much carbon fouling in com- busting chamber. Clear away. Air cleaner is clogged up. Clean filter element. Intake pipe is leaking. Replace or replace it. Poor com- pression. Piston or cylinder or piston ring is worn. Replace it with a new one. Air leakage from the surface by which cylinder block contacting with cylinder head. Replace cylinder gasket. Too big or too small valve clear- ance. Adjust it. Valve tightness is poor. Repair.

Engine is pinking. Piston, cylinder or piston ring is worn excessively. Replace the worn. Piston pin and piston pin hole are worn excessively. Replace piston or piston pin. Tie rod small head is worn excessively. Replace tie rod. Roller bearing for crankshaft main shaft is worn. Replace roller bearing. Abnormal com- bustion. Engine is too hot. Shoot trouble. Too much carbon fouling in combustion chamber. Clear away. Improper gasoline brand or low gasoline quality. Replace with qualified gasoline. Engine cannot start because of spark lacking. There is water in floater room. Clean. Improper spard plug electrodes clearance. Adjust. Incorrect ignition time. Readjust. Something wrong with induced coil, and so on. Check and replace damaged parts. EN39

Gasoline en- gine is exces- sively hot. Improper ignition time. Adjust ignition advance angle properly. Insufficient engine oil supply. Refill sufficient engine oil. Exhaust pipe is clogged. Dredge exhaust pipe. Flow guard is leaking. Repair leakages. Dirt or something like this fill up among air cooling fins. Clear away dirt or something like this. Cooling fan is loosen, losing function. Reinstall it well. Cylinder, piston or piston ring is worn, resulting in air flow between cylinder and crankcase. Replace tie rod. Tie rod deformation makes piston and cylin- der bushing side wear. Replace the worn part. Improper adjustment of engine speed pro- duces excessive rotational speed. Readjust engine speed to proper val- ue by speed regulator. Bearing of crankshaft is burnt out. Replace main bearing. NOTE The gasoline engine should run under certain temperature. Generally, permitting temperature at the flow guard outlet is between 80~100° C, while the temperature of the crankcase is about 60° C under the magneto. If temperatures surpass the limits, it is an indication that the gasoline engine is excessive hot.

Stop suddenly when running. Fuel supply system. Fuel is used up. Fill fuel. Carburetor is clogged. Check fuel line and dredge. Floater is leaking. Repair. Needle valve sticks. Dismantle floater chamber and eliminate it. Ignition system. Spark plug is struck through, or short-circuited by carbon deposit. Replace spark plug. Side electrode of spark plug is dropped out. Replace spark plug and re- move the dropped object. Hi-voltage wire is dripped out. Connect it. Engine oil in the crankcase is insufficient. Add engine oil until it arrives the upper level. Ignition coil is struck through to be short-circuited. Replace ignition coil with new one. Parking wire is located on the engine body. Find out meeting and insu- late. The other. Cylinder is pulled consider- ably, valve falls off. Repair or replace damaged parts. EN40

There is noise of beating or piston slap is heard. Piston or piston ring or cylinder is worn. Replace the worn. Tie rod or piston pin and piston pin. Replace the worn. Main bearing of crankshaft is worn. Replace. Piston ring is broken. Replace. There is metal-beaten noise in abnormal com- bustion. Too much carbon deposit in combust- ing chamber. Clear away carbon deposit. Too small electrodes clearance of spark plug. Adjust electrodes clearance properly. Engine is flooded with fuel. Check relative parts such as car- buretor. Improper fuel brand. Replace fuel. Engine is excessively hot. Shoot trouble. The other. Improper valve clearance. Readjust valve clearance prop- erly. Fly wheel is not connected to crankshaft tightly. Connect tightly. EN41 SPECIFICATIONS

Max. torque (Nm/r/min) 6.7/3000 9.0/3000 11.0/3000 Fuel consumption (g/kwh) 394 Cooling system Force air-cooled Ignition system Non-transistorized ignition (TCI) Spark plug type BRR6ES (NGK), NHSP LD F6RTCU Output direction of power shaft Counterclockwise

2. Date relating to adjustment

Item Date Spark plug clearance 0.7~0.8 mm Carburetor idling 1700±150 rpm Valve clearance (cold engine) Intake: 0.15±0.02 mm; Exhaust: 0.20±0.02 mm NOTES t Technical data vary with type of engine, therefore, they are subject to change without notice. t%BUBJOBSFTVJUBCMFGPSUIFFOHJOFXIJDIJTFRVJQQFEXJUISFEVDFS

II. TIMING OF DISTRIBUTION

Intake valve opening: BTDC10°; Intake valve closing: ABDC20°. Exhaust valve opening: BBDC30°; Exhaust valve closing: ATDC10°. EN42

Engine switch Ignition coil Oil sensor Spark plug B1/R