Honda GX620 Owner'S Manual Download Page 44 | Manualshive

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42

TECHNICAL & CONSUMER INFORMATION

Wiring Diagrams

Recommended wiring for engines not equipped with

Oil Alert

system.

07/12/21 13:04:48 31ZN1600_043

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Summary of Contents for GX620

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Page 2: ...or printing Illustrations are based on the GX670 VXC2 type Honda Motor Co Ltd reserves the right however to discontinue or change specifications or design at any time without notice and without incurring any obligation what so ever No part of this publication may be reproduced without written permission The engine exhaust from this product contains chemicals known to the State of California to cau...

Page 3: ...tion is intended to help you avoid damage to your engine other property or the environment We suggest you read the warranty policy to fully understand its coverage and your responsibilities of ownership The warranty policy is a separate document that should have been given to you by your dealer When your engine needs scheduled maintenance keep in mind that your Honda servicing dealer is specially ...

Page 4: ...the hazards associated with operating or maintaining an engine You must use your own good judgment You will find important safety information in a variety of forms including preceded by a safety alert symbol and one of three signal words DANGER WARNING or CAUTION These signal words mean You WILL be KILLED or SERIOUSLY HURT if you don t follow instructions You CAN be KILLED or SERIOUSLY HURT if you...

Page 5: ...Condition of the Engine 10 Check the Engine 11 Check the Equipment Powered by This Engine 11 OPERATION 12 SAFE OPERATING PRECAUTIONS 12 STARTING THE ENGINE 12 STOPPING THE ENGINE 13 SERVICING YOUR ENGINE 14 THE IMPORTANCE OF MAINTENANCE 14 MAINTENANCE SAFETY 15 MAINTENANCE SCHEDULE 16 FUEL RECOMMENDATIONS 17 ENGINE OIL LEVEL CHECK 18 ENGINE OIL CHANGE 19 OIL FILTER CHANGE 20 ENGINE OIL RECOMMENDAT...

Page 6: ...NOT START 32 ENGINE LACKS POWER 32 TECHNICAL CONSUMER INFORMATION 33 TECHNICAL INFORMATION 33 Serial Number Location 33 Battery Connections for Electric Starter 34 Carburetor Modification for High Altitude Operation 35 Fuel Regulator Information 35 Emission Control System Information 36 Air Index 38 Specifications 39 Wiring Diagrams 41 CONSUMER INFORMATION 43 DEALER LOCATOR INFORMATION 43 Honda PU...

Page 7: ...gine without proper instructions Do not allow children to operate the engine Keep children and pets away from the area of operation Dry gas fuel natural gas and LPG are extremely flammable and combustible LPG is also combustible and so is NATURAL GAS Refuel outdoors in a well ventilated area with the engine stopped Never smoke near LPG or NATURAL GAS and keep other flames and sparks away To preven...

Page 8: ...r run the engine in a closed garage or confined area Review the instructions provided with the equipment powered by this engine for any additional safety precautions that should be observed in conjunction with engine startup shutdown operation or protective apparel that may be needed to operate the equipment 07 12 21 13 00 34 31ZN1600_007 ...

Page 9: ... 7 COMPONENT CONTROL LOCATIONS GX620K1 GX670 CONTROLS FEATURES OIL FILTER SPARK PLUG OIL COOLER EQUIPPED TYPE FAN COVER AIR CLEANER 07 12 21 13 00 38 31ZN1600_008 ...

Page 10: ... 8 CONTROLS FEATURES SPARK PLUG OIL FILLER CAP OIL LEVEL DIPSTICK ELECTRIC STARTER OIL DRAIN BOLT HIGH MOUNT MUFFLER OPTIONAL EQUIPMENT GX620K1 GX670 07 12 21 13 00 42 31ZN1600_009 ...

Page 11: ...emain in the ON position If the engine stops and will not restart check the engine oil level page before troubleshooting in other areas The engine is equipped with an oil cooler to maintain the correct temperature Engine RPM is set by the governor when the engine is running The engine uses LPG or NATURAL GAS as the fuel with Honda specified fuel regulator and relational parts equipped on it The pr...

Page 12: ... and all nuts bolts and screws are tightened Look for signs of damage Improperly maintaining this engine or failing to correct a problem before operation could cause a malfunction in which you could be seriously injured Always perform a pre operation inspection before each operation and correct any problem Before beginning your preoperation checks be sure the engine is level and the engine switch ...

Page 13: ... carburetor reducing engine performance Review the instructions provided with the equipment powered by this engine for any precautions and procedures that should be followed before engine startup The Oil Alert system applicable types will automatically stop the engine before the oil level falls below safe limits However to avoid the inconvenience of an unexpected shutdown always check the engine o...

Page 14: ...losed areas Breathing carbon monoxide can cause unconsciousness or death For your safety do not operate the engine in an enclosed area such as a garage Your engine s exhaust contains poisonous carbon monoxide gas that can collect rapidly in an enclosed area and cause illness or death Review the instructions provided with the equipment powered by this engine for any safety precautions that should b...

Page 15: ...the engine fails to start within 5 seconds release the starter switch and wait at least 10 seconds before operating the starter again When the engine starts release the starter switch To stop the engine in an emergency simply turn the engine switch to the OFF position Under normal conditions use the following procedure Turn the engine switch to the OFF position Turn the fuel valve to the CLOSED or...

Page 16: ...ecommendations and schedules in this owner s manual To help you properly care for your engine the following pages include a maintenance schedule routine inspection procedures and simple 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 qualifi...

Page 17: ...y maintenance or repairs This will eliminate several potential hazards Operate outside away from open windows or doors Let the engine and exhaust system cool before touching Do not run the engine unless instructed to do so Read the instructions before you begin and make sure you have the tools and skills required To reduce the possibility of fire or explosion be careful when working around LPG or ...

Page 18: ... Replace Check Clean Replace Check adjust Replace Clean Check adjust Check adjust Clean Check 18 19 20 22 23 25 27 After every 300 hrs 2 REGULAR SERVICE PERIOD 3 Replace the paper element type only Service more frequently when used in dusty areas These items should be serviced by your Honda servicing dealer unless you have the proper tools and are mechanically proficient Refer to the Honda shop ma...

Page 19: ... for concern This engine is certified to operate on LPG or NATURAL GAS only If spark knock or pinging occurs at a steady engine speed under normal load see an authorized Honda servicing dealer Running the engine with persistent spark knock or pinging can cause engine damage Running the engine with persistent spark knock or pinging is considered misuse and the Distributor s Limited Warranty does no...

Page 20: ...ience of an unexpected shutdown always check the engine oil level before startup Place the engine horizontally on a level surface Start the engine and let it idle for 1 or 2 minutes Stop the engine and wait for 2 or 3 minutes Remove the oil level dipstick and wipe it clean Fully insert the oil level dipstick then remove it to check the oil level If the oil level is low remove the oil filler cap an...

Page 21: ...r to your local recycling center or service station for reclamation Do not throw it in the trash pour it on the ground or pour it down a drain With the engine in a level position fill to the upper limit mark on the oil level dipstick with the recommended oil see page Refer to the power equipment manual because the capacity of engine oil differs by the oil cooler that is attached Running the engine...

Page 22: ...cified for your model Using the wrong filter or a non Honda filter which is not of equivalent quality may cause engine damage Use an oil filter socket rather than a strap wrench to avoid striking and damaging the oil pressure switch Drain the engine oil and retighten the drain bolt securely see page 19 Remove the oil filter and drain the oil into a suitable container Discard the used oil filter 1 ...

Page 23: ...tegory SJ or later or equivalent Always check the API service label on the oil container to be sure it includes the letters SJ or later or equivalent SAE 10W 30 is recommended for general use Other viscosities shown in the chart may be used when the average temperature in your area is within the indicated range Refill the crankcase with the specified amount of the recommended oil Reinstall the oil...

Page 24: ...PER FILTER ELEMENT AIR CLEANER CASE Remove the air cleaner cover and inspect the filter elements Clean or replace dirty filter elements Always replace damaged filter elements Refer to page for instructions that apply to the air cleaner and filter service 23 07 12 21 13 02 23 31ZN1600_023 ...

Page 25: ...r or with a damaged air filter will allow dirt to enter the engine causing rapid engine wear This type of damage is not covered by the Distributor s Limited Warranty Release four latch tabs from the air cleaner cover and remove the cover Remove the foam filter from the cover Remove the paper filter from the air cleaner case Inspect both air filter elements and replace them if they are damaged Alwa...

Page 26: ...he air cleaner case side Never try to brush off dirt brushing will force dirt into the fibers Replace the paper element if it is excessively dirty Wipe dirt from the inside of the air cleaner body and cover using a moist rag Be careful to prevent dirt from entering the air chamber that leads to the carburetor Place the foam air filter element to the air cleaner cover Make sure the seal around the ...

Page 27: ...lugs can cause engine damage Measure the spark plug electrode gap with a wire type feeler gauge Correct the gap if necessary by carefully bending the side electrode Inspect the spark plugs Replace them if the electrodes are worn or if the insulator is cracked or chipped Clean the spark plugs with a wire brush if you are going to reuse them Install the spark plug carefully by hand to avoid cross th...

Page 28: ...g the used spark plugs tighten 1 8 1 4 turn after the spark plug seats If installing a new spark plugs tighten 1 2 turn after the spark plug seats A loose spark plug can overheat and damage the engine Overtightening the spark plug can damage the threads in the cylinder head Attach the spark plug caps 6 7 07 12 21 13 02 46 31ZN1600_027 ...

Page 29: ...ster Check local laws and regulations A spark arrester is available from authorized Honda servicing dealers If the engine has been running the muffler will be very hot Allow the muffler to cool before servicing the spark arrester Remove the special screw from the muffler and remove the spark arrester The spark arrester must be serviced every 6 month or 100 hours to keep it functioning as designed ...

Page 30: ...rom the spark arrester screen Be careful to avoid damaging the screen The spark arrester must be free of breaks and holes Replace the spark arrester if it is damaged Reinstall the spark arrester and muffler protector in the reverse order of disassembly 2 3 07 12 21 13 02 57 31ZN1600_029 ...

Page 31: ... cool for at least half an hour before cleaning Clean all exterior surfaces touch up any damaged paint and coat other areas that may rust with a light film of oil Using a garden hose or pressure washing equipment can force water into the air cleaner or muffler opening Water in the air cleaner will soak the air filter and water that passes through the air filter or muffler can enter the cylinder ca...

Page 32: ...ral times to distribute the oil in the cylinders Reinstall the spark plugs If possible avoid storage areas with high humidity because that promotes rust and corrosion Select a well ventilated storage area away from any appliance that operates with a flame such as a furnace water heater or clothes dryer Also avoid any area with a spark producing electric motor or where power tools are operated 1 1 ...

Page 33: ... vehicle A hot engine and exhaust system can burn you and can ignite some materials If installed remove the battery and store it in a cool dry place Recharge the battery once a month while the engine is in storage This will help to extend the service life of the battery If the cylinders were coated with oil during storage preparation the engine may smoke briefly at startup This is normal Before yo...

Page 34: ... inspect spark plugs Check engine oil level Take engine to an authorized Honda servicing dealer or refer to shop manual Recharge battery Replace fuse Move fuel valve to OPEN or ON Turn engine switch to ON Refuel Clean gap or replace spark plugs p 25 Add oil p 18 Replace or repair faulty components as necessary Battery discharged Fuse burnt out Fuel valve CLOSED or OFF if equipped Engine switch OFF...

Page 35: ...UMBER ENGINE TYPE Engine serial number Engine type Date of purchase Record the engine serial number engine type and purchase date in the space below You will need this information when ordering parts and when making technical or warranty inquires see page 43 07 12 21 13 03 31 31ZN1600_034 ...

Page 36: ...battery with an ampere hour rating of at least 45 Ah A battery can explode if you do not follow the correct procedure seriously injuring anyone nearby Keep all sparks open flames and smoking materials away from the battery Connect the battery positive cable to the starter solenoid terminal as shown Connect the battery negative cable to an engine mounting bolt frame bolt or other good engine ground...

Page 37: ...it the available adjustment after the fuel system is correctly installed If an equipment manufacturer did not install your engine in a product you will need the installation instructions for the Honda certified system see below If you choose not to use the Honda fuel system you must use a system that has been certified by the fuel system manufacturer to be used on this Honda engine Or if you use a...

Page 38: ...escribing the operation and maintenance of emission control systems The following instructions and procedures must be followed in order to keep the emissions from your Honda engine within the emission standards Tampering with or altering the emission control system may increase emissions beyond the legal limit Among those acts that constitute tampering are Removal or alteration of any part of the ...

Page 39: ...sion regulations Follow the maintenance schedule on page Remember that this schedule is based on the assumption that your machine will be used for its designed purpose Sustained high load or high temperature operation or use in unusually wet or dusty conditions will require more frequent service The emission control systems on your Honda engine were designed built and certified to conform with EPA...

Page 40: ...ormance of available engines The lower the Air Index the less pollution The durability description is intended to provide you with information relating to the engine s emission durability period The descriptive term indicates the useful life period for the engine s emission control system See your Emission Control Warranty for additional information 50 hours 0 80 cm 0 80 cc inclusive 125 hours gre...

Page 41: ...m Max Net Torque Mass production engines may vary from this value Actual power output for the engine installed in the final machine will vary depending on numerous factors including the operating speed of the engine in application environmental conditions maintenance and other variables The engine oil capacity varies depending on the oil cooler that is attached Refer to the instructions provided w...

Page 42: ... power output for the engine installed in the final machine will vary depending on numerous factors including the operating speed of the engine in application environmental conditions maintenance and other variables Spark plug gap Valve clearance cold Other specifications 0 20 0 02 mm 0 15 0 02 mm 0 012 0 016 in 0 3 0 4 mm Refer to page 25 See your authorized Honda dealer The engine oil capacity v...

Page 43: ...41 TECHNICAL CONSUMER INFORMATION Wiring Diagrams Recommended wiring for engines equipped with Charge Coil and Oil Alert system 07 12 21 13 04 40 31ZN1600_042 ...

Page 44: ...42 TECHNICAL CONSUMER INFORMATION Wiring Diagrams Recommended wiring for engines not equipped with Oil Alert system 07 12 21 13 04 48 31ZN1600_043 ...

Page 45: ...ll give you additional information for maintaining and repairing your engine You may order them from your Honda engine dealer This manual covers complete maintenance and overhaul procedures It is intended to be used by a skilled technician Available through your Honda dealer or through Helm lnc at 1 888 292 5395 or visit www hondapowerequipment com This manual provides complete illustrated parts l...

Page 46: ... number see page A detailed description of the problem When you write or call please give us this information Power Equipment Division Customer Relations Office 4900 Marconi Drive Alpharetta GA 30005 8847 Servicing dealership personnel are trained professionals They should be able to answer any questions you may have If you encounter a problem that your dealer does not solve to your satisfaction p...

Page 47: ...fore each use First 20 hours Subsequent Check engine oil level Check air filter Change engine oil Refer to the maintenance schedule on page 16 2 600 300 rpm 3 000 300 rpm 0 012 0 016 in 0 3 0 4 mm ZGR5A 4 1 5 US qt 1 4 1 2 US qt 1 1 SAE 10W 30 API SJ or later or equivalent for general use Fuel Engine Oil Spark Plug Carburetor Maintenance NGK LPG NATURAL GAS page 25 page 21 Without oil filter repla...

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