Owner`s Manual
Contents
1. Proper storage preparation is essential for keeping your pump trouble free and looking good The following steps will help to keep rust and corrosion from impairing your pump s function and appearance and will make the engine easier to start when you use the pump again Cleaning 1 Wash the engine and pump Wash the engine by hand and be careful to prevent water from entering the air cleaner or muffler opening Keep water away from controls and all other places that are difficult to dry as water promotes rust NOTICE 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 causing damage e Water contacting a hot engine can cause damage If the engine has been running allow it to cool for at least half an hour before washing 2 Wipe dry all accessible surfaces 3 Fill the pump chamber with clean fresh water start the engine outdoors and let it run until it reaches normal operating temperature to evaporate any external water NOTICE Dry operation will damage the pump seal Be sure the pump chamber is filled with water before starting the engine 39 4 Stop the engine and allow it to cool 5 Remove the pump drain plug and flush th2. Adding a Fuel Stabilizer to Extend Fuel Storage Life When adding a fuel stabilizer fill the fuel tank with fresh gasoline If only partially filled air in the tank will promote fuel deterioration during storage If you keep a container of gasoline for refueling be sure that it contains only fresh gasoline 1 Add fuel stabilizer following the manufacturer s instructions 2 After adding a fuel stabilizer run the engine outdoors for 10 minutes to be sure that treated gasoline has replaced the untreated gasoline in the carburetor NOTICE Dry operation will damage the pump seal sure the pump chamber is filled with water before starting the engine 3 Stop the engine and move the fuel valve lever to the OFF position FUEL VALVE LEVER 41 Draining the Fuel Tank and Carburetor 1 Place an approved gasoline container below the carburetor and use a funnel to avoid spilling fuel 2 Remove the carburetor drain bolt and sediment cup then move the fuel valve lever to the ON position A WARNING Gasoline is highly flammable and explosive You can be burned or seriously injured when handling fuel Keep heat sparks and flame away Handle fuel only outdoors Wipe up spills immediately DRAIN BOLT SEDIMENT CUP 3 After all the fuel has drained into the container reinstall the drain bolt and sediment cup Tighten them securely 42
3. 14 Check the Engine acca scadccacusancecsazctenteseceuannsaassanaseseasanndecsaeasavacceeaaciaae 14 SAFE OPERATING PRECAUTIONS 15 PUMPPLACEMED T Ges mia 16 SUCTION 17 DISCHARGE HOSE INSTALLATION 18 PRIMING THE PUMP Ee UE sega u v sume 18 STARTING THE ENGINE 19 SETTING ENGINE SPEED lt 21 STOPPING THE ENGINE cH aU DNUS 22 SERVICING YOUR PUMP THE IMPORTANCE OF MAINTENANCE 24 MAINTENANCE SAFE IY 25 MAINTENANCE SCHEDULE enu dio 26 p C 27 FUEL RECOMMENDATIONS 355k 00203 ak FenS a x 28 ENGINE OIL LEVEL CHECK 29 ENGINE CRAIN GE 30 ENGINE OIL RECOMM
4. 49 TECHNICAL amp CONSUMER INFORMATION Emission Control System Information Source of Emissions The combustion process produces carbon monoxide oxides of nitrogen and hydrocarbons Control of hydrocarbons and oxides of nitrogen is very important because under certain conditions they react to form photochemical smog when subjected to sunlight Carbon monoxide does not react in the same way but it is toxic Honda utilizes lean carburetor settings and other systems to reduce the emissions of carbon monoxide oxides of nitrogen and hydrocarbons The U S and California Clean Air Acts EPA and California regulations require all manufacturers to furnish written instructions describing the operation and maintenance of emis sion 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 and Altering 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 intake fuel or exhaust systems e Altering or defeating the governor linkage or speed adjusting mechanism to cause the engine to operate outside its design parameters 50 TECHNICAL amp CONSUMER INFORMATION Problems That May Affect Emissions If you are aware of any of the following symptoms have your engine
5. Engine 1 Change the engine see page 30 2 Remove the spark plug see page 35 3 Pour a tablespoon 5 10 cc of clean engine oil into the cylinder 4 Pull the starter grip several times to distribute the oil in the cylinder 5 Reinstall the spark plug 6 Pull the starter grip slowly until resistance is felt and the notch on the starter pulley aligns with the hole at the top of the recoil starter cover This will close the valves so moisture cannot enter the engine cylinder Return the starter grip gently Align notch on pulley with hole at top of cover STORAGE PRECAUTIONS If your pump will be stored with gasoline in the fuel tank and carburetor it is important to reduce the hazard of gasoline vapor ignition 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 If possible avoid storage areas with high humidity because that promotes rust and corrosion Unless all fuel has been drained from the fuel tank leave the fuel valve lever in the OFF position to reduce the possibility of fuel leakage 43 Place the pump on a level surface Tilting can cause fuel or oil leakage With the engine and exhaust system cool cover the pump to keep out dust A hot engine and exhaust system can ignite or melt some
6. DRAIN PLUG OIL FILLER CAP DIPSTICK 30 SERVICING YOUR PUMP ENGINE OIL RECOMMENDATIONS Oil is a major factor affecting performance and service life Use 4 stroke automotive detergent oil Use 4 stroke motor oil that meets or exceeds the requirements for service category 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 20 40 60 80 100 120 F T T T 1T 5nh n 1 10 0 10 20 30 40 C AMBIENT TEMPERATURE 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 recommended range 31 SERVICING YOUR PUMP AIR FILTER INSPECTION Unscrew the wing nut and remove the air cleaner cover Check the air filter to be sure itis clean and in good condition If the air filter is dirty clean it as described on page 33 Replace the air filter if itis damaged Reinstall the air filter and air cleaner cover Be sure all the parts shown below are in place Tighten the wing nut securely NOTICE Operating the engine without an air filter 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 WING NUT a COVER WASHER AIR CLEANER COVER AIR FILTER 32 SERVICING YOUR PUMP AIR FILTER CLEANING A dir
7. SDBENICHE DIIS ruunt da uada Mese pui und 53 CONSUMER INFORMI T ION 1 pnus gas aiunt eua seu excuses 57 Honda PUDINGATIONS ein 57 Customer Service Information 58 QUICK REFERENCE INFORMATION PUMP SAFETY IMPORTANT SAFETY INFORMATION Honda WH15X and WH20X pumps are designed to pump only water that is not intended for human consumption and other uses can result in injury to the operator or damage to the pump and other property Most accidents can be prevented if you follow all instructions in this manual and on the pump The most common hazards are discussed below along with the best way to protect yourself and others Operator Responsibility It is the operator s responsibility to provide the necessary safeguards to protect people and property Know how to stop the pump quickly in case of emergency If you leave the pump for any reason always turn the engine off Understand the use of all controls and connections Be sure that anyone who operates the pump receives proper instruction Do not let children operate the pump Keep children and pets away from the area of operation Pump Operation Pump only water that is not intended for human consumption Pumping flammable liquids suc
8. air Ignition system Transistor magneto PTO shaft rotation Counterclockwise cold Tune up Spark plug gap 0 028 0 031 in See page 35 0 70 0 80 mm Idle speed 1 400 19 rpm Seepage37 Valve clearance Intake 0 15 0 02 mm See shop Exhaust 0 20 0 02 mm manual Other specifications No other adjustments needed 53 TECHNICAL amp CONSUMER INFORMATION WH15X continued Pump Suction port diameter 1 6 in 40 mm Discharge port diameter 1 6 in 40 mm Total head maximum 164 ft 50 m Suction head maximum 26 2 ft 8 m Discharge capacity maximum 105 7 US gal 400 0 per minute Self priming time 40 seconds at 16 4 ft b m 54 TECHNICAL amp CONSUMER INFORMATION WH20X Dimensions and weight Dry mass weight Length 16 7 in 425 mm Width 14 8 in 375 mm Height 15 9 in 405 mm 51 8 Ibs 23 5 kg Engine design and performance Model GX160K1 Engine type 4 stroke overhead valve single cylinder Displacement bore X stroke 9 9 cu in 163 cc 2 7 X 1 8 in 68 0 X 45 0 mm Cooling system Forced air Ignition system Transistor magneto PTO shaft rotation Counterclockwise Tune up Spark plug gap 0 028 0 031 in 0 70 0 80 mm Idle speed 1 400 550 rpm Seepage 37 Valve clearance cold Intake 0 15 0
9. complete understanding of its operation and a certain amount of practice with its controls Before operating the pump for the first time please review the IMPORTANT SAFETY INFORMATION the chapter titled BEFORE OPERATION For your safety avoid starting or operating the engine in an enclosed area such as a garage Your engine s exhaust contains poisonous carbon monoxide gas which can collect rapidly in an enclosed area and cause illness or death Pump only fresh water that is not intended for human consumption Pumping flammable liquids such as gasoline or fuel oils can result in a fire or explosion causing serious injury Pumping sea water beverages acids chemical solutions or any other liquid that promotes corrosion can damage the pump 15 PUMP PLACEMENT For best pump performance place the pump near the water level and use hoses that are no longer than necessary That will enable the pump to produce the greatest output with the least self priming time As head pumping height increases pump output decreases The length type and size of the suction and discharge hoses can also significantly affect pump output Discharge head capability is always greater than suction head capability so it is important for suction head to be the shorter part of total head Minimizing suction head placing the pump near the water level is also very important for reducing self priming tim
10. inspected and repaired by your servicing dealer e Hard starting or stalling after starting e Rough idle Misfiring or backfiring under load e Afterburning backfiring e Black exhaust smoke or high fuel consumption Replacement Parts The emission control systems on your Honda engine were designed built and certified to conform with EPA and California emission regulations We recommend the use of genuine Honda parts whenever you have maintenance done These original design replacement parts are manufactured to the same standards as the original parts so you can be confident of their performance The use of replacement parts that are not of the original design and 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 see page 26 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 51 TECHNICAL amp CONSUMER INFORMATION Air Index An Air Index Information hang tag label is applied to engine
11. 02 mm Exhaust 0 20 0 02 mm See shop manual Other specifications No other adjustments needed 55 TECHNICAL amp CONSUMER INFORMATION WH 20X continued Pump Suction port diameter 2 50 mm Discharge port diameter 2 in 50 mm Total head maximum 164 ft 50 m Suction head maximum 26 2 ft 8 m Discharge capacity maximum 132 1 US gal 500 0 per minute Self priming time 60 seconds at 16 4 ft b m 56 TECHNICAL amp CONSUMER INFORMATION CONSUMER INFORMATION Honda Publications These publications will give you additional information for maintaining and repairing your pump You may order them from your Honda pump dealer Shop Manual This manual covers complete maintenance and overhaul procedures It is intended to be used by a skilled technician Parts Catalog This manual provides complete illustrated parts lists 57 TECHNICAL amp CONSUMER INFORMATION Customer Service Information Servicing dealership personnel are trained professionals They should be able to answer any question you may have If you encounter a problem that your dealer does not solve to your satisfaction please discuss it with the dealership s management The Service Manager or General Manager can help Almost all problems are solved in this way If you are dissatisfied with the decision made by the dealership s management contact the Honda Power Equipment Customer
12. CAL amp CONSUMER INFORMATION Carburetor Modification for High Altitude Operation At high altitude the standard carburetor air fuel mixture will be too rich Performance will decrease and fuel consumption will increase A very rich mixture will also foul the spark plug and cause hard starting Operation at an altitude that differs from that at which this engine was certified for extended periods of time may increase emissions High altitude performance can be improved by specific modifications to the carburetor If you always operate your pump at altitudes above 5 000 feet 1 500 meters have your servicing dealer perform this car buretor modification This engine when operated at high altitude with the carburetor modifications for high altitude use will meet each emission standard throughout its useful life Even with carburetor modification engine horsepower will decrease about 3 596 for each 1 000 foot 300 meter increase in altitude The effect of altitude on horsepower will be greater than this if no carburetor modification is made NOTICE When the carburetor has been modified for high altitude operation the air fuel mixture will be too lean for low altitude use Operation at altitudes below 5 000 feet 1 500 meters with a modified carburetor may cause the engine to overheat and result in serious engine damage For use at low altitudes have your servicing dealer return the carburetor to original factory specifications
13. ENDATIONS 31 CONTENTS SERVICING YOUR PUMP continued AIR FILTER INSPECTION dudas c tena sums 32 AIR FILTER CLEANING 33 SEDIMENT CUP CLEANING 22 22 34 SPARK PLUG SERVICE eua aiai 35 SPEED ADJUSTMENT 37 SPARK ARRESTER SERVICE optional equipment 38 43 STORAGE PRECAUTIONS 0 43 REMOVAL FROM STORAGE 5 22 5 52 53 5 5 032325202225 2 0 rtaxO Peace tace rotat 44 cic 46 Engine Will Not Start 46 Engine POWER inam 46 PUMP eme ce rc THE EE 47 N PUMP usan sad ens aes as 47 Low Pump jer qe 25 47 TECHNICAL CONSUMER INFORMATION TECHNICAL 48 Serial Number OCR OM 2 2 48 Carburetor Modification for High Altitude Operation 49 Emission Control System Information 50 HER 52
14. GET STARTED Your safety is your responsibility A little time spent in preparation will significantly reduce your risk of injury Knowledge Read and understand this manual Know what the controls do and how to operate them Familiarize yourself with the pump and its operation before you begin pumping Know what to do in case of emergencies Be sure of what you are pumping This pump is designed to pump only fresh water that is not intended for human consumption 12 BEFORE OPERATION IS YOUR PUMP READY TO GO For your safety and to maximize the service life of your equipment it is very important to take a few moments before you operate the pump to check its condition Be sure to take care of any problem you find or have your servicing dealer correct it before you operate the pump A WARNING Improperly maintaining this pump or failing to correct a problem before operation could cause a malfunction in which you could be seriously injured Always perform a preoperation inspection before each operation and correct any problem Exhaust gas contains poisonous carbon monoxide Avoid inhalation of exhaust gas Never run the engine in a closed garage or confined area To prevent fire hazards keep the pump at least 3 feet 1 meter away from building walls and other equipment during operation Do not place flammable objects close to the engine Before beginning your preoperation checks be sure the pump is on
15. Owner s Manual WATER PUMP WH15X WH20X E tT B here to save this TREE B manual to your computer eet E ER RE EAR 7 ERE ES RP 2001 2009 Honda Motor Co Ltd Rights Reserved WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Keep this owner s manual handy so you can refer to it at any time This owner s manual is considered a permanent part of the water pump and should remain with the water pump if resold The information and specifications included in this publication were in effect at the time of approval for printing 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 whatever No part of this publication may be reproduced without written permission INTRODUCTION Congratulations on your selection of a Honda water pump We are certain you will be pleased with your purchase of one of the finest water pumps on the market We want to help you get the best results from your new water pump and to operate it safely This manual contains the information on how to do that plea
16. Relations Office You can write to American Honda Motor Co Inc Power Equipment Division Customer Relations Office 4900 Marconi Drive Alpharetta Georgia 30005 8847 Ortelephone 770 497 6400 When you write or call please give us this information e Model and serial number Name of the dealer who sold the pump to you Name and address of the dealer who services your pump Date of purchase Your name address and telephone number e A detailed description of the problem 58 59 60 QUICK REFERENCE INFORMATION Unleaded gasoline with a pump Type octane rating of 86 or higher Fuel WHY15X Capacity 0 53 US gal 2 0 0 WH20x 0 82 US gal 3 1 2 Type SAE 10W 30 API SJ or later or Engine Oil equivalent for general use 0 63 05 0 60 0 6 5 Spark Plug DENSO W20EPR U Gap 0 028 0 031 in 0 70 0 80 mm Carburetor Idle speed 1 400 is rpm Before each Check engine oil level use Check air filter Maintenance First Change engine oil 20 hours Subsequent Refer to the maintenance schedule on HONDA The Power of Dreams 31YB7723 25 0 800 2009 04 00X31 YB7 7230 Printed in Japan
17. WARNING Improperly maintaining this pump or failure to correct a problem before operation can cause a malfunction in which you can be seriously hurt or killed Always follow the inspection and maintenance recommendations and schedules in this owner s manual To help you properly care for your pump 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 qualified mechanic The maintenance schedule applies to normal operating conditions If you operate your pump under severe conditions such as sustained high load or high temperature operation or use in unusually wet or dusty conditions consult your servicing dealer for recommendations applicable to your individual needs and use Remember that your servicing dealer knows your pump best and is fully equipped to maintain and repair it To ensure the best quality and reliability use only new Honda Genuine parts or their equivalents for repair and replacement Maintenance replacement or repair of emission control devices and systems may be performed by any engine repair establishment or individual using parts that are certified to EPA standards 24 SERVICING YOUR PUMP MAINTENANCE SAFETY Some of the most important
18. a level surface and the ignition switch is in the OFF position Check the General Condition of the Pump e Look around and underneath the pump for signs of oil or gasoline leaks Remove any excessive dirt or debris especially around the engine muffler and recoil starter Look for signs of damage Check that all nuts bolts screws hose connectors and clamps tightened 13 BEFORE OPERATION Check the Suction and Discharge Hoses Check the general condition of the hoses Be sure the hoses are in serviceable condition before connecting them to the pump Remember that the suction hose must be reinforced construction to prevent hose collapse Check that the sealing washer in the suction hose connector is in good condition Check that the hose connectors and clamps are securely installed see pages 17 and 18 Check that the strainer is in good condition and is installed on the suction hose Check the Engine Check the engine oil level see page 29 Running the engine with a low oil level can cause engine damage Check the air filter see page32 A dirty air filter will restrict air flow to the carburetor reducing engine and pump performance Check the fuel level see page 27 Starting with a full tank will help to eliminate or reduce operating interruptions for refueling 14 OPERATION SAFE OPERATING PRECAUTIONS To safely realize the full potential of this pump you need a
19. amber is filled with water before starting the engine 2 Move the throttle lever to its slowest position 3 Turn the throttle stop screw to obtain the standard idle speed Standard idle speed 1 400 7 rpm THROTTLE STOP SCREW 37 SERVICING YOUR PUMP SPARK ARRESTER SERVICE optional equipment Your engine is not factory equipped with a spark arrester In some areas it is illegal to operate an engine without a spark arrester Check local laws and regulations A spark arrester is available from authorized Honda servicing dealers The spark arrester must be serviced every 100 hours to keep it functioning as designed If the engine has been running the muffler will be very hot Allow the muffler to cool before servicing the spark arrester 1 Remove the two 8 mm nuts and remove the muffler 2 Remove the four 5 mm self tapping screws and remove the muffler protector from the muffler 3 Remove the 4 mm screw from the spark arrester and remove the spark arrester from the muffler 9 5 mm SELF TAPPING SCREWS MUFFLER PROTECTOR 4 mm SCREW MUFFLER SPARK ARRESTER 4 Use a brush to remove carbon deposits from 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 SPARK ARRESTER SCREEN 5 Install the spark arrester muffler protector and muffler in the reverse order of disassembly 38
20. ank above the fuel strainer shoulder Never refuel the engine inside a building where gasoline fumes may reach flames or sparks Keep gasoline away from appliance pilot lights barbecues electric appliances power tools etc Spilled fuel is not only a fire hazard it causes environmental damage Wipe up spills immediately NOTICE Fuel can damage paint and plastic Be careful not to spill fuel when filling your fuel tank Damage caused by spilled fuel is not covered under the Distributor s Limited Warranty After refueling tighten the fuel tank cap securely FUEL RECOMMENDATIONS This engine is certified to operate on unleaded gasoline with a pump octane rating of 86 or higher You may use regular unleaded gasoline containing no more than 1096 Ethanol E10 or 596 Methanol by volume In addition Methanol must contain cosolvents and corrosion inhibitors Use of fuels with content of Ethanol or Methanol greater than shown above may cause starting and or performance problems It may also damage metal rubber and plastic parts of the fuel system Engine damage or performance problems that result from using a fuel with percentages of Ethanol or Methanol greater than shown above are not covered under warranty Never use stale or contaminated gasoline or an oil gasoline mixture Avoid getting dirt or water in the fuel tank 28 SERVICING YOUR PUMP ENGINE OIL LEVEL CHECK Check the engine oil level with the engine sto
21. ark plug wrench commercially available Recommended spark plug BPR6ES NGK W20EPR U DENSO NOTICE Incorrect spark plugs can cause engine damage 1 Disconnect the spark plug cap and remove any dirt from around the spark plug area 2 Remove the spark plug with a 13 16 inch spark plug wrench SPARK PLUG WRENCH SPARK PLUG CAP P d 3 Inspect the spark plug Replace it if the electrodes are worn or if the 0 028 0 031 insulator is cracked or chipped T 0 70 0 80 mm 4 Measure the spark plug electrode gap with a suitable gauge Correct the gap if necessary by carefully bending the side electrode The gap should be 0 028 0 031 in 0 70 0 80 mm 5 Install the spark plug carefully by hand to avoid cross threading 35 SERVICING YOUR PUMP 6 After the spark plug seats tighten with a 13 16 inch spark plug wrench to compress the washer If reinstalling the used spark plug tighten 1 8 1 4 turn after the spark plug seats If installing a new spark plug tighten 1 2 turn after the spark plug seats NOTICE A loose spark plug can overheat and damage the engine Overtightening the spark plug can damage the threads in the cylinder head 7 Attach the spark plug cap 36 SERVICING YOUR PUMP IDLE SPEED ADJUSTMENT 1 Start the engine outdoors and allow it to warm up to operating temperature Dry operation will damage the pump seal Be sure the pump ch
22. carburetor The fuel valve lever must be in the ON position for the engine to run When the engine is not in use leave the fuel valve lever in the OFF position to prevent carburetor flooding and to reduce the possibility of fuel leakage Ignition Switch The ignition switch controls the ignition system The ignition switch must be in the ON position for the engine to run Turning the ignition switch to the OFF position stops the engine CONTROLS FUEL VALVE LEVER IGNITION SWITCH CONTROLS Choke Lever CHOKE LEVER The choke lever opens and closes the choke valve in the carburetor S The CLOSED position enriches the fuel mixture for starting a cold engine The OPEN position provides the a 2 correct fuel mixture for operation after starting and for restarting a warm engine Throttle Lever The throttle lever controls engine speed Moving the throttle lever in the directions shown makes the engine run faster or slower Pump output is controlled by adjusting the throttle lever At maximum throttle position the pump will deliver the highest output volume Moving the throttle lever toward the idle THROTTLE LEVER position will decrease the output volume of the pump 10 CONTROLS Recoil Starter Grip Pulling the starter grip operates the recoil starter to crank the engine for starting STARTER GRIP 11 BEFORE OPERATION ARE YOU READY TO
23. e Self priming time is the time it takes the pump to bring water the distance of the suction head during initial operation DISCHARGE HEAD TOTAL HEAD SUCTION HEAD 16 SUCTION HOSE INSTALLATION Use the commercially available hose and hose connector with the hose clamp provided with the pump The suction hose must be reinforced with a noncollapsible wall or braided wire construction The suction hose should be no longer than necessary Pump performance is best when the pump is near the water level and the hoses are short Use a hose clamp to securely fasten the hose connector to the suction hose in order to prevent air leakage and loss of suction Verify that the hose connector sealing washer is in good condition Install the strainer provided with the pump on the other end of the suction hose and secure it with a hose clamp The strainer will help to prevent the pump from becoming clogged or damaged by debris Securely tighten the hose connector on the pump suction port SUCTION PORT SEALING WASHER HOSE COUPLER HOSE CLAMP RING available SUCTION HOSE commercially 52 available HOSE CONNECTOR commercially available HOSE CLAMP STRAINER HOSE CONNECTOR 17 DISCHARGE HOSE INSTALLATION Use a commercially available hose and hose connector and clamp provided with the pump It is best to use a short large dia meter ho
24. e pump with clean fresh water Allow the water to drain from the pump chamber then reinstall the drain plug 6 After the pump is clean and dry touch up any damaged paint and coat areas that may rust with a light film of oil Lubricate controls with a silicone spray PUMP DRAIN PLUG lubricant Fuel Gasoline will oxidize and deteriorate in storage Old gasoline will cause hard starting and it leaves gum deposits that clog the fuel system If the gasoline in your engine deteriorates during storage you may need to have the carburetor and other fuel system components serviced or replaced The length of time that gasoline 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 months or even less if the gasoline was not fresh when you filled the fuel tank The Distributor s Limited Warranty does not cover fuel system damage or engine performance problems resulting from neglected storage preparation You can extend fuel storage life by adding a fuel stabilizer that is formulated for that purpose or you can avoid fuel deterioration problems by draining the fuel tank and carburetor 40
25. h as gasoline or fuel oils can result in a fire or explosion causing serious injury Pumping sea water beverages acids chemical solutions or any other liquid that promotes corrosion can damage the pump Refuel With Care Gasoline is extremely flammable and gasoline vapor can explode Refuel outdoors in a well ventilated area with the engine stopped and the pump on a level surface Do not fill the fuel tank above the fuel strainer shoulder Never smoke near gasoline and keep other flames and sparks away Always store gasoline in an approved container Make sure that any spilled fuel has been wiped up before starting the engine PUMP SAFETY Hot Exhaust 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 Let the engine cool before transporting the pump or storing it indoors To prevent fire hazards keep the pump at least 3 feet 1 meter away from building walls and other equipment during operation Do not place flammable objects close to the engine Carbon Monoxide Hazard Exhaust gas contains poisonous carbon monoxide Avoid inhalation of exhaust gas Never run the engine in a closed garage or confined area PUMP SAFETY SAFETY LABEL LOCATIONS The labels shown here contain important safety information Please read them carefully These labels are considered permanent parts of your pump If a label comes off or becomes ha
26. l tank and carburetor Refuel with fresh gasoline 27 3 Remove and inspect spark plug Spark plug faulty fouled or improperly gapped Clean gap or replace spark plug Spark plug wet with fuel flooded engine Dry and reinstall spark plug Start engine with throttle lever in FAST position 4 Take engine to an authorized Honda servicing dealer or Engine Lacks Power refer to shop manual Fuel filter clogged carburetor malfunction ignition malfunction valves stuck etc Possible Cause Replace or repair faulty components as necessary Correction 1 Check air filter Air filter clogged Clean or replace filter 2 Check fuel Bad fuel pump stored without treating or draining gasoline or refuel with bad gasoline Drain fuel tank and carburetor 421 Refuel with fresh gasoline 27 3 Take engine to an authorized Honda servicing dealer or refer to shop manual Fuel filter clogged carburetor malfunction ignition malfunction valves stuck etc Replace or repair faulty components as necessary 46 TAKING CARE UNEXPECTED PROBLEMS PUMP No Pump Output Possible Cause Correction 1 Check pump chamber Pump not primed Prime pump 2 Check suction hose Hose collapsed cut or punctured Replace suction hose Strainer not completely underwater Si
27. materials Do not use sheet plastic as a dust cover A nonporous cover will trap moisture around the pump promoting rust and corrosion REMOVAL FROM STORAGE Check your pump as described in the BEFORE OPERATION chapter of this manual If the fuel was drained during storage preparation fill the tank with fresh gasoline If you keep a container of gasoline for refueling be sure that it contains only fresh gasoline Gasoline oxidizes and deteriorates over time causing hard starting If the cylinder was coated with oil during storage preparation the engine may smoke briefly at startup This is normal 44 TRANSPORTING If the pump has been running allow the engine to cool for at least 15 minutes before loading the pump on the transport vehicle A hot engine and exhaust system can burn you and can ignite some materials Keep the pump level when transporting to reduce the possibility of fuel leakage Move the fuel valve lever to the OFF position 45 TAKING CARE UNEXPECTED PROBLEMS ENGINE Engine Will Not Start Possible Cause Correction 1 Check control positions Fuel valve OFF Move fuel valve lever to ON position Choke open Move choke lever to CLOSED position unless engine is warm Ignition switch OFF Turn ignition switch to ON 2 Check fuel Out of fuel Refuel Bad fuel pump stored without treating or draining gasoline or refuel with bad gasoline Drain fue
28. nk the strainer and the end of a suction hose completely underwater Air leak at connector Replace sealing washer if missing or damaged Tighten hose connector and clamp p 171 Strainer clogged Clean debris from strainer 3 Measure suction and discharge head Excessive head Relocate pump and or hoses to reduce head p 16 4 Check engine Engine lacks power See page 46 Low Pump Output Possible Cause Correction 1 Check suction hose Hose collapsed damaged too long or diameter too small Replace suction hose Air leak at connector Replace sealing washer if missing or damaged Tighten hose connector and clamp 17 Strainer clogged Clean debris from strainer 2 Check discharge Hose damaged too Replace discharge hose long or diameter too hose 18 small 3 Measure suction and discharge head Marginal head Relocate pump and or hoses to reduce head p 16 4 Check engine Engine lacks power Seepage 46 47 TECHNICAL amp CONSUMER INFORMATION TECHNICAL INFORMATION Serial Number Location WH20X gt ENGINE SERIAL NUMBER Record the engine serial number in the space below You will need this serial number when ordering parts and when making technical or warranty inquiries see page 59 Engine serial number 48 TECHNI
29. p to snap back against the engine Return it gently to prevent damage to the starter STARTER GRIP 20 7 the choke lever was moved to the CLOSED position to start the engine gradually move it to the OPEN position as the engine warms up SETTING ENGINE SPEED After starting the engine move the throttle lever to the FAST position for self priming and check pump output Pump output is controlled by adjusting engine speed Moving the throttle lever in the FAST direction will increase pump output and moving the throttle lever in the SLOW direction will decrease pump output THROTTLE LEVER 21 STOPPING THE ENGINE To stop the engine in an emergency simply turn the ignition switch to the OFF position Under normal conditions use the following procedure 1 Move the throttle lever to the SLOW position THROTTLE LEVER IGNITION SWITCH 22 3 Turn the fuel valve lever to the OFF position FUEL VALVE LEVER After use remove the pump drain plug see page 40 and drain the pump chamber Remove the filler cap and flush the pump chamber with clean fresh water Allow the water to drain from the pump chamber then reinstall the filler cap and drain plug 23 SERVICING YOUR PUMP THE IMPORTANCE OF MAINTENANCE Good maintenance is essential for safe economical and trouble free operation It will also help reduce air pollution A
30. pped and in a level position 1 Remove the oil filler cap dipstick and wipe it clean 2 Insert and remove the dipstick without screwing it into the filler neck Check the oil level shown on the dipstick 3 If the oil level is low fill to the edge of the oil filler hole with the recommended oil see page 31 4 Screw in the oil filler cap dipstick securely OIL FILLER NECK UPPER LIMIT OIL FILLER CAP DIPSTICK NOTICE Running the engine with a low oil level can cause engine damage 29 SERVICING YOUR PUMP ENGINE OIL CHANGE Drain the used oil while the engine is warm Warm oil drains quickly and completely 1 Place a suitable container below the engine to catch the used oil then remove the oil filler cap dipstick and the drain plug 2 Allow the used oil to drain completely then reinstall the drain plug and tighten it securely Please dispose of used motor oil in a manner that is compatible with the environment We suggest you take used oil in a sealed container to your local recycling center or service station for reclamation Do not throw it in the trash pour it on the ground or down a drain 3 With the engine in a level position fill to the edge of the oil filler hole with the recommended oil see page 31 Engine oil capacity 0 63 US qt 0 60 0 NOTICE Running the engine with a low oil level can cause engine damage 4 Screw in the oil filler cap dipstick securely
31. rd to read contact an authorized Honda servicing dealer for a replacement WARNING Do not pump flammable or corrosive materials an explosion or fire could result causing severe personal injury A WARNING Operation of This Equipment May Create Sparks That Can Start Fires Around Dry Vegetation A Spark Arrestor May be Required The Operator Should Contact Local Fire Agencies For Laws or Regulations Relating to Fire Prevention Requirements Per California Public Resources Code 4442 6 HOT MUFFLER CAN BURN YOU Stay away if engine has been running CAUTION PUMP CAUTION LABEL CAUTION DO NOT RUN WITHDUT PRECAUCION NO HAGA FUNCIONAR PRIMING WATER ORY OPERATION SIN CEBADO FUNCIONAMIENTO WILL BURN THE SEAL SECO QUEMA EL SELLO VORSICHT VOR OEM ANLAUFEN PRECAUTION FAITE PAS FON BE TESTUND LEERLAUF GEHAUSE CTIONNER SAWS AMORSAGE MIT WASSER BEFULLEN TROCKEN FONCTIONNEMENT AU SEC AUF ZERST RT DIE DICHTUNGEN BRULE LE JOINT D ETANCHEITE CONTROLS COMPONENT amp CONTROL LOCATIONS WH20X gt CARRYING HANDLE FUEL FILLER CAP QI MUFFLER Es AIR CLEANER 2 Pu gf THROTTLE LEVER FUEL VALVE LEVER STARTER GRIP PRIMING WATER FILLER CAP DISCHARGE PORT IGNITION SWITCH SUCTION PORT OIL FILLER CAP DIPSTICK STRAINER PUMP DRAIN PLUG CONTROLS Fuel Valve Lever The fuel valve opens and closes the connection between the fuel tank and the
32. s interval whichever comes first Engine oil Check level Change O O Air filter Check Clean 1 Sediment O Spark plug Check Adjust O Replace O Spark arrester Clean O optional part Fuel tank and filter Clean O 2 Idle speed Check Adjust O 2 Valve clearance Check Adjust O 2 Combustion Clean After every 500 Hrs 2 chamber Fuel tube Check Every 2 years Replace if necessary 2 Impeller Check O 2 Impeller clearance Check O 2 Pump inlet valve Check O 2 1 Service more frequently when used in dusty areas 2 These items should be serviced by your servicing dealer unless you have the proper tools and are mechanically proficient Refer to Honda shop manual for service procedures 3 For commercial use log hours of operation to determine proper maintenance intervals 26 SERVICING YOUR PUMP REFUELING With the engine stopped remove the fuel tank cap and check the fuel level Refill the tank if the fuel level is low A WARNING Gasoline is highly flammable and explosive You can be burned or seriously injured when handling fuel Stop the engine and keep heat sparks and flame away Handle fuel only outdoors Wipe up spills immediately MAXIMUM FUEL LEVEL 27 SERVICING YOUR PUMP Refuel in a well ventilated area before starting the engine If the engine has been running allow it to cool Refuel carefully to avoid spilling fuel Do not fill the fuel t
33. s certified to an emission durability time period in accordance with the requirements of the California Air Resources Board The bar graph is intended to provide you our customer the ability to compare the emissions performance of available engines The lower the Air Index the less pollution The durability description is intended to provide you with information relating 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 System Warranty for additional information Descriptive Term Applicable to Emission Durability Period Moderate 50 hours 0 80 cc inclusive 125 hours greater than 80 cc Intermediate 125 hours 0 80 cc inclusive 250 hours greater than 80 cc Extended 300 hours 0 80 cc inclusive 500 hours greater than 80 cc 1000 hours 225 cc and greater The Air Index Information hang tag must remain on the pump until it is sold Remove the hang tag before operating the pump 52 TECHNICAL amp CONSUMER INFORMATION Specifications WH15X Dimensions and weight Length 16 3 in 415 mm Width 14 2 in 360 mm Height 15 9 in 405 mm Dry mass weight 49 Ibs 22 kg Engine Model GX120K1 Engine type 4 stroke overhead valve single cylinder Displacement bore X stroke 7 3 cu in 118 cc 2 4 X 1 7 in 60 0 X 42 0 Cooling system Forced
34. safety precautions follow However we cannot warn you of every conceivable hazard that can arise in performing maintenance Only you can decide whether or not you should perform a given task A WARNING Failure to properly follow maintenance instructions and precautions can cause you to be seriously hurt or killed Always follow the procedures and precautions in the owner s manual Safety Precautions Make sure the engine is off before you begin any maintenance or repairs This will eliminate several potential hazards Carbon monoxide poisoning 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 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 gasoline Use only a nonflammable solvent not gasoline to clean parts Keep cigarettes sparks and flames away from all fuel related parts 25 SERVICING YOUR PUMP MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD 3 First Every Every Every ITEM Each month 3months 6 months year Perform at every indicated use or or or or month or operating hour 20 Hrs 50 Hrs 100 Hrs 300 Hr
35. se because that will reduce fluid friction and improve pump output A long or small diameter hose will increase fluid friction and reduce pump output Tighten the hose clamp securely to prevent the discharge hose from disconnecting under high pressure PRIMING THE PUMP HOSE CONNECTOR commercially available DISCHARGE HOSE commercially available HOSE CLAMP Before starting the engine remove the filler cap from the pump chamber and completely fill the pump chamber with water Reinstall the filler cap and tighten it securely NOTICE Operating the pump dry will destroy the pump seal If the pump has been operated dry stop the engine immediately and allow the pump to cool before priming PRIMING WATER FILLER CAP 18 STARTING THE ENGINE 1 Prime the pump see page 18 2 Move the fuel valve lever to the ON position FUEL VALVE LEVER 3 To start a cold engine move the choke lever to the CLOSED position To restart a warm engine leave the choke lever in the OPEN position CHOKE LEVER 4 Move the throttle lever away from the SLOW position about 1 3 of the way toward the FAST position THROTTLE LEVER 19 5 Turn the ignition switch to the ON position IGNITION SWITCH 6 Pull the starter grip lightly until you feel resistance then pull briskly in the direction of the arrow as shown below Do not allow the starter gri
36. se read it carefully As you read this manual you will find information preceded by a NOTICE symbol That information is intended to help you avoid damage to your water pump 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 water pump needs scheduled maintenance keep in mind that your Honda servicing dealer is specially trained in servicing Honda water pumps Your Honda servicing dealer is dedicated to your satisfaction and will be pleased to answer your questions and concerns Best Wishes Honda Motor Co Ltd INTRODUCTION A FEW WORDS ABOUT SAFETY Your safety and the safety of others are very important And using this water pump safely is an important responsibility To help you make informed decisions about safety we have provided operating procedures and other information on labels and in this manual This information alerts you to potential hazards that could hurt you or others Of course it is not practical or possible to warn you about all the hazards associated with operating or maintaining a water pump You must use your own good judgment You will find important safety information in a variety of forms including Safety Labels on the pump Safety Messages preceded by a safety alert
37. symbol of three signal words DANGER WARNING CAUTION These signal words mean You WILL be KILLED or SERIOUSLY HURT if DANGER you don t follow instructions A WARNING You CAN be KILLED or SERIOUSLY HURT if you don t follow instructions You CAN be HURT if you don t follow CAUTION instructions Safety Headings such as MPORTANT SAFETY INFORMATION Safety Section such as PUMP SAFETY Instructions how to use this pump correctly and safely This entire book is filled with important safety information please read it carefully 2 5 CONTROLS COMPONENT amp CONTROL LOCATIONS 252 ooa 8 CONTROLS qc tt Cann epee Somer pnt ee tre nine ren 9 Fuel Valve Lever 9 S WEG 9 Choke Lever Msn 10 Throttle Lever 10 Recoil Starter Grip 11 BEFORE OPERATION ARE YOU READY TO GET STARTED nu un 12 IS YOUR PUMP READY TO GO 13 Check the General Condition of the Pump 13 Check the Suction and Discharge HOSES
38. ty air filter will restrict air flow to the carburetor reducing engine performance If you operate the pump in very dusty areas clean the air filter more frequently than specified in the Maintenance Schedule see page 26 1 Clean the air filter in warm soapy water rinse and allow to dry thoroughly Or clean in nonflammable solvent and allow to dry 2 Dip the air filter 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 3 Wipe dirt from the air cleaner base and cover using a moist rag Be careful to prevent dirt from entering the carburetor 33 SERVICING YOUR PUMP SEDIMENT CUP CLEANING 1 Move the fuel valve lever to the OFF position then remove the fuel sediment cup and O ring A WARNING Gasoline is highly flammable and explosive You can be burned or seriously injured when handling fuel Stop the engine and keep heat sparks and flame away Handle fuel only outdoors Wipe up spills immediately 2 Wash the sediment cup in non flammable solvent and dry it thoroughly 3 Place the O ring in the fuel valve and install the sediment cup Tighten the sediment cup securely 4 Move the fuel valve lever to the ON position and check for leaks Replace the O ring if there is any leakage SEDIMENT CUP 34 SERVICING YOUR PUMP SPARK PLUG SERVICE In order to service the spark plug you will need a sp
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