Honda Car engines GX640 Owner'S Manual Download | Manualshive

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Summary of Contents for Car engines GX640

Page 1: ...Click SAVE to save this manual to your computer Thank you for choosing Honda ...

Page 2: ...X640 The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm 0 Honda Motor Co Ltd 1995 31ZG8611 c9 0 5009704 00X31 ZG8 6110 1 PRINTED IN JAPAN ...

Page 3: ...uct information available at the time of printing Honda Motor Co Ltd reserves the right to make changes at any time without notice and without incurring any obligation No part of this publication may be reproduced without written permission This manual should be considered a permanent part of the engine and should remain with it if it is resold It is illegal in some areas to operate an engine with...

Page 4: ...be KILLED or SERIOUSLY HURT if you don t follow instructions m You CAN be KILLED or SERIOUSLY HURT if you don t follow instructions m You CAN be HURT if you don t follow instructions Each message tells you what the hazard is what can happen and what you can do to avoid or reduce injury Damage Prevention Messages You will also see other important messages that are preceded by the word NOTICE This w...

Page 5: ...t proper instructions l Gasoline is extremely flammable and is explosive under certain conditions Refuel in a well ventilated area with the engine stopped Do not smoke or allow flames or sparks in the area where the engine is refueled or where gasoline is stored Do not overfill the fuel tank there should be no fuel in the filler neck After refueling make sure the tank cap is closed properly and se...

Page 6: ...ENGINE OIL IR CLEANER E SERIAL NUMBER RADIATOR SPARK PLUGS RADIATOR SCREEN OIL DRAIN PLUG 5 ...

Page 7: ...K RADIATOR SCREEN and RADIATOR CORE 1 Allow the radiator to cool then remove the screen from the front of the radiator 2 Clean debris from the screen and radiator core 3 Reinstall the radiator screen RADIATOR SCREEN CORE 6 ...

Page 8: ... SF or SG SAE 1OW 30 is recommended for general use Other viscosities shown in the chart may be p O o x 2o g 4 used when the average temperature in your AMBIENT TEMPERATURE area is within the indicated range Oil Level Check Check the oil level with the engine stopped and level Remove the dipstick and wipe it clean Fully insert the dipstick then remove it to check the oil level If the oil level is ...

Page 9: ...lls immediately Fuel can damage paint and some types of plastic Be careful not to spill fuel when filling your fuel tank Damage caused by spillied fuel is not covered under warranty Never use stale or contaminated gasoline or an oil fuel mixture Avoid getting dirt or water in the fuel tank Occasionally you may hear light spark knock or pinging metallic rapping noise while operating under heavy loa...

Page 10: ...he engine with persistent spark knock or pinging can cause engine damage Running the engine with persistent spark knock or pinging is misuse and the Distributor s Limited Warranty does not cover parts damaged by misuse 9 ...

Page 11: ...to 10 ethanol by volume Gasoline containing ethanol may be marketed under the name Gasohol MTBE methyl tertiary butyl ether 15 by volume You may use gasoline containing up to 15 MTBE by volume METHANOL methyl or wood alcohol 5 by volume You may use gasoline containing up to 5 metha nol by volume as long as it also contains cosolvents and corrosion inhibitors to protect the fuel system Gasoline con...

Page 12: ...ar the MIN mark add coolant to bring it up to the MAX mark Coolant Recommendation Use high quality ethylene glycol antifreeze that is specifically formulated for use in aluminum engines Mix the antifreeze with low mineral drinking water or distilled water A 50 50 mixture of ethylene glycol antifreeze and water is recommended for most temperatures and provides good corrosion protection A higher con...

Page 13: ...pid engine wear This type of damage is not covered by the Distributor s Limited Warranty 1 Remove the wing nuts to remove the air cleaner cover and air cleaner elements 2 Inspect the air cleaner elements Clean or replace the elements if necessary If the air cleaner elements need cleaning follow the procedure described on pages 21 22 3 Reinstall the air cleaner elements and air cleaner cover Tighte...

Page 14: ...his carburetor modification Even with carburetor modification engine horsepower will de crease about 3 5 for each 300 meter 1 000 foot increase in altitude The effect of altitude on horsepower will be greater than this if no carburetor modification is made p6Yiz J When the carburetor has been modified for high altitude operation the air fuel mixture will be too lean for low altitude use Operation ...

Page 15: ... maintenance procedures using basic hand tools Other service tasks that are more difficult or require special tools are best handled by professionals and are normally performed by a Honda technician or other qualified mechanic The maintenance schedule applies to normal operating conditions If you operate your engine under severe conditions such as sustained high load or high temperature operation ...

Page 16: ...g from engine exhaust Be sure there is adequate ventilation whenever you operate the engine Burns from hot parts Let the engine and exhaust system cool before touching Injury from moving parts Do not run the en ine unless instructed to do so l Read the instructions efore you begin and make sure you have the tools and skills required l To reduce the possibilrty of fire or explosion be careful when ...

Page 17: ...ission control systems The following instructions and proce dures must be followed in order to keep the emissions from your Honda engine within the emission standards Tampering and Altering Tampering with or altering the emission control system may increase emissions beyond the legal limit Among those acts that constitute tampering are l Removal or alteration of any part of the intake fuel or exha...

Page 18: ...nd quality may impair the effectiveness of your emission control system A manufacturer of an aftermarket part assumes the responsibility that the part will not adversely affect emission performance The manufacturer or rebuilder of the part must certify that use of the part will not result in a failure of the engine to comply with emission regulations Maintenance Follow the maintenance schedule on ...

Page 19: ... only 1 Service more frequently when used in dusty areas 2 These items should be serviced by an authorized Honda servicing dealer unless the owner has the proper tools and is mechanically proficient See the Honda Shop Manual 3 For commercial use log hours of operation to determine proper maintenance intervals 18 ...

Page 20: ...er cap securely ENGINE OIL REFILL CAPACITY Without oil filter change 2 0 e 2 1 US qt 1 8 Imp qt With oil filter change 2 3 2 4 US qt 2 0 Imp qt ENGINE OIL FILLER CAP UPPER LIMIT LOWER LIMIT ENGINE Oli DIPSTICK OIL DRAIN BOLT Wash your hands with soap and water after handling used oil Please dispose of used motor oil in a manner that doesn t harm the environment We suggest you take it in a sealed c...

Page 21: ...se then use an oil filter wrench to tighten the filter an additional 7 8 turn TORQUE 8 N m 0 8 kg m 5 6 ft lb I I I O RING OIL FILTER Use only a Honda genuine oil filter or a filter of equivalent quality specified for your model Using the wrong Honda filter or a non Honda filter which is not of equivalent quality may cause engine damage 6 Pour the specified amount of recommended oil into the engin...

Page 22: ... thoroughly Or clean in nonflammable solvent and dry Dip the element in clean engine oil then squeeze out all excess oil The engine will smoke when started if too much oil is left in the foam Paper element Tap the element several times on a hard surface to remove loose dirt or blow low pressure 30 psi or less compressed air through the filter from the inside Do not try to brush off dirt Brushing w...

Page 23: ...Air Cleaner AIR CLEANER COVER PAPER ELEMENT WING NUTS FOAM ELEMENT DUCT 22 ...

Page 24: ...wrench to remove the spark plugs m The muffler becomes very hot during operation and remains hot for a while after stopping the engine Be careful not to touch the muffler while it is hot 4 5 Vi xally inspect the spark plugs Discard them if the insulator is cracked or chipped Clean the spark plugs with a wire brush if they are to be reused WRENCH Measure the plug gap with a feeler gauge Correct as ...

Page 25: ...rk plug wrench to compress the washers If installing new spark plugs tighten l 2 turn after the spark plugs seat to compress the washers If reinstalling used spark plugs tighten l 8 l 4 turn after the spark plugs seat to compress the washers pisiq Loose spark plugs can overheat and damage the engine Over tightening the spark plugs can damage the threads in the cylinder head 24 ...

Page 26: ...rrester must be serviced every 100 hours to keep it function ing as designed 1 Allow the engine to cool then remove the special screw from the muffler and remove the spark arrester SPECIAL SCREW 2 Use a brush to clean carbon deposits from the spark arrester screen SCREEN 3 The spark arrester must be free of breaks and holes Replace if necessary 4 Install the spark arrester and the muffler in the r...

Page 27: ...available from Honda shown below should be inspected periodically and must be replaced if there is an accumu lation of dirt Additionally scheduled replacement every year or 300 operating hours will help to ensure continued troublefree operation If another type of fuel filter is installed follow the inspection and or replacement recommendations of the filter manufacturer FUEL FILTER 26 ...

Page 28: ...oline can be left in your fuel tank and carburetor without causing functional problems will vary with such factors as gasoline blend your storage temperatures and whether the fuel tank is partially or completely filled The air in a partially filled fuel tank promotes fuel deterioration Very warm storage temperatures accelerate fuel deterioration Fuel deterioration problems may occur within a few m...

Page 29: ...ill promote fuel deterioration during storage If you keep a container of gasoline for refueling be sure that it contains only fresh gasoline 1 Add gasoline stabilizer following the manufacturer s instructions 2 After adding a gasoline stabilizer run the engine outdoors for 10 minutes to be sure that treated gasoline has replaced the untreated gasoline in the carburetor 28 ...

Page 30: ... highly flammable and explosive and you can be burned or seriously injured when handling fuel l Stop engine and keep heat sparks and flame away l Handle fuel only outdoors l Wipe up spills immediately 2 Loosen the carburetor drain screw and drain the fuel into an approved gasoline container After draining tighten the drain screw securely DRAIN SCREW ...

Page 31: ...that promotes rust and corrosion Unless all fuel has been drained from the fuel tank turn off the fuel supply valve following the manufacturer s instructions With the engine and exhaust system cool cover to keep out dust A hot engine and exhaust system can ignite or melt some materi als Do not use sheel plastic as a dust cover A nonporous cover will trap moisture around the mower promoting rust an...

Page 32: ...ght 50 kg 110 2 Ibs NOTE Specifications are subject to change without notice 8 TUNERUP SPECIFICATIONS ITEM SPECIFICATION PAGE Spark plug gap 1 O 1 l mm 0 039 0 043 in 23 Engine idle speed 1 400 100 rpm See your authorized Intake 0 12 f 0 02 mm Honda Valve Clearance cold Exhaust 0 20 f 0 02 mm servicing dealer Other specifications No other adjustments needed 31 ...

Page 33: ...issatisfied with the decision made by the dealership s management contact the Honda Power Equipment Customer Relations Office You can write to American Honda Motor Co Inc Power Equipment Division Customer Relations Office 4475 River Green Parkway Duluth Georgia 30136 2565 Or telephone 770 497 6400 When you write or call please give us this information l Model and serial numbers see page 5 l Name o...

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