Honda WH15X Owner's Manual
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Summary of Contents for Honda WH15X
- Page 1 Owner’s Manual WATER PUMP WH15X/WH20X o2001-2009 Honda Motor Co., Ltd. -All Rights Reserved...
- Page 2 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.
- Page 3 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.
- Page 4 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.
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Page 5: Table Of Contents
CONTENTS PUMP SAFETY ..................IMPORTANT SAFETY INFORMATION ..........SAFETY LABEL LOCATIONS ..............CONTROLS COMPONENT & CONTROL LOCATIONS ..........CONTROLS .................... Fuel Valve Lever ................Ignition Switch ................... Choke Lever ..................10 Throttle Lever .................. . 10 Recoil Starter Grip ................ - Page 6 CONTENTS SERVICING YOUR PUMP (continued) AIR FILTER INSPECTION ..............32 AIR FILTER CLEANING ............... . 33 SEDIMENT CUP CLEANING ..............34 SPARK PLUG SERVICE ............... . 35 IDLE SPEED ADJUSTMENT ..............37 SPARK ARRESTER SERVICE (optional equipment) ......
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Page 7: Pump Safety
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. - Page 8 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.
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Page 9: Safety Label Locations
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 hard to read, contact an authorized Honda servicing dealer for a replacement. PUMP CAUTION LABEL... -
Page 10: Component & Control Locations
CONTROLS COMPONENT & CONTROL LOCATIONS WH20X CARRYING HANDLE FUEL FILLER CAP MUFFLER AIR CLEANER THROTTLE LEVER CHOKE LEVER FUEL VALVE LEVER STARTER GRIP OIL DRAIN PLUG PRIMING WATER FILLER CAP DISCHARGE PORT IGNITION SWITCH SUCTION PORT OIL FILLER CAP/DIPSTICK STRAINER PUMP DRAIN PLUG... -
Page 11: Controls
CONTROLS CONTROLS Fuel Valve Lever The fuel valve opens and closes FUEL VALVE LEVER the connection between the fuel tank and the 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 O F F p o s i t i o n t o p r e v e n t carburetor flooding and to reduce... -
Page 12: Choke Lever
CONTROLS Choke Lever CHOKE LEVER The choke lever opens and closes the choke valve in the carburetor. The CLOSED position enriches the fuel mixture for starting a cold engine. OPEN The OPEN position provides the correct fuel mixture for operation after starting, and for restarting a warm engine. -
Page 13: Recoil Starter Grip
CONTROLS Recoil Starter Grip Pulling the starter grip operates the recoil starter to crank the engine for starting. STARTER GRIP... -
Page 14: Before Operation
BEFORE OPERATION ARE YOU READY TO 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. -
Page 15: Is Your Pump Ready To Go
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. -
Page 16: Check The Suction And Discharge Hoses
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 (see page Check that the hose connectors and clamps are securely installed... -
Page 17: Operation
OPERATION SAFE OPERATING PRECAUTIONS To safely realize the full potential of this pump, you need a 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 on page and the chapter titled BEFORE OPERATION . -
Page 18: Pump Placement
OPERATION 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. -
Page 19: Suction Hose Installation
OPERATION 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. -
Page 20: Discharge Hose Installation
OPERATION DISCHARGE HOSE INSTALLATION HOSE CONNECTOR Use a commercially available (commercially available) hose and hose connector, and DISCHARGE HOSE clamp provided with the pump. (commercially available) It is best to use a short, large-dia- meter hose, because that will reduce fluid friction and improve pump output. -
Page 21: Starting The Engine
OPERATION STARTING THE ENGINE Prime the pump (see page Move the fuel valve lever to the ON position. 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 CLOSED Move the throttle lever away from the SLOW position about 1/3 of... - Page 22 OPERATION Turn the ignition switch to the ON position. IGNITION SWITCH 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 grip to snap back against the engine. Return it gently to prevent damage to the starter.
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Page 23: Setting Engine Speed
OPERATION If the choke lever was moved to the CLOSED position to start the engine, gradually move it to the OPEN position as the engine warms CHOKE LEVER OPEN SETTING ENGINE SPEED After starting the engine, move the throttle lever to the FAST position for self-priming, and check pump output. -
Page 24: Stopping The Engine
OPERATION 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. Move the throttle lever to the SLOW position. THROTTLE LEVER SLOW Turn the ignition switch to the OFF position. IGNITION SWITCH... - Page 25 OPERATION Turn the fuel valve lever to the OFF position. FUEL VALVE LEVER After use, remove the pump drain plug (see page ), 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.
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Page 26: Servicing Your Pump
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. 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. -
Page 27: Maintenance Safety
SERVICING YOUR PUMP MAINTENANCE SAFETY Some of the most important 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. Failure to properly follow maintenance instructions and precautions can cause you to be... -
Page 28: Maintenance Schedule
SERVICING YOUR PUMP MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD (3) First Every Every Every Each month 6 months ITEM 3 months year Perform at every indicated month or operating hour 20 Hrs. 50 Hrs. 100 Hrs. 300 Hrs. interval, whichever comes first. Engine oil Check level Change... -
Page 29: Refueling
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. 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. -
Page 30: Fuel Recommendations
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 tank above the fuel strainer shoulder. Never refuel the engine inside a building where gasoline fumes may reach flames or sparks. -
Page 31: Engine Oil Level Check
SERVICING YOUR PUMP ENGINE OIL LEVEL CHECK Check the engine oil level with the engine stopped and in a level position. Remove the oil filler cap/dipstick and wipe it clean. Insert and remove the dipstick without screwing it into the filler neck. Check the oil level shown on the dipstick. -
Page 32: Engine Oil Change
SERVICING YOUR PUMP ENGINE OIL CHANGE Drain the used oil while the engine is warm. Warm oil drains quickly and completely. Place a suitable container below the engine to catch the used oil, then remove the oil filler cap/dipstick and the drain plug. Allow the used oil to drain completely, then reinstall the drain plug, and tighten it securely. -
Page 33: Engine Oil Recommendations
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 API 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). -
Page 34: Air Filter Inspection
SERVICING YOUR PUMP AIR FILTER INSPECTION Unscrew the wing nut and remove the air cleaner cover. Check the air filter to be sure it is clean and in good condition. If the air filter is dirty, clean it as described on page . -
Page 35: Air Filter Cleaning
SERVICING YOUR PUMP AIR FILTER CLEANING A dirty 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 Clean the air filter in warm soapy water, rinse, and allow to dry thoroughly. -
Page 36: Sediment Cup Cleaning
SERVICING YOUR PUMP SEDIMENT CUP CLEANING Move the fuel valve lever to the OFF position, then remove the fuel sediment cup and O-ring. 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. -
Page 37: Spark Plug Service
SERVICING YOUR PUMP SPARK PLUG SERVICE In order to service the spark plug, you will need a spark plug wrench (commercially available). Recommended spark plug: BPR6ES (NGK) W20EPR-U (DENSO) Incorrect spark plugs can cause engine damage. Disconnect the spark plug cap, and remove any dirt from around the spark plug area. - Page 38 SERVICING YOUR PUMP 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.
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Page 39: Idle Speed Adjustment
SERVICING YOUR PUMP IDLE SPEED ADJUSTMENT Start the engine outdoors, and allow it to warm up to operating temperature. Dry operation will damage the pump seal. Be sure the pump chamber is filled with water before starting the engine. Move the throttle lever to its slowest position. Turn the throttle stop screw to obtain the standard idle speed. -
Page 40: Spark Arrester Service (Optional Equipment)
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. -
Page 41: Storage
STORAGE STORAGE PREPARATION 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 Wash the engine and pump. -
Page 42: Fuel
STORAGE Stop the engine, and allow it to cool. Remove the pump drain plug, and flush the pump with clean, fresh water. Allow the water to drain from the pump chamber, then reinstall the drain plug. After the pump is clean and dry, touch up any damaged paint, and coat areas that may rust with a light film of oil. - Page 43 STORAGE 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.
- Page 44 STORAGE Draining the Fuel Tank and Carburetor Place an approved gasoline container below the carburetor, and use a funnel to avoid spilling fuel. Remove the carburetor drain bolt and sediment cup, then move the fuel valve lever to the ON position. Gasoline is highly flammable and explosive.
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Page 45: Engine Oil
STORAGE Engine Oil Change the engine oil (see page Remove the spark plug (see page Pour a tablespoon (5 10 cc) of clean engine oil into the cylinder. Pull the starter grip several times to distribute the oil in the cylinder. Reinstall the spark plug. -
Page 46: Removal From Storage
STORAGE 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 materials. -
Page 47: Transporting
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. -
Page 48: Taking Care Of Unexpected Problems
TAKING CARE OF UNEXPECTED PROBLEMS ENGINE Engine Will Not Start Possible Cause Correction Check control Fuel valve OFF. Move fuel valve lever positions. to ON position. Choke open. Move choke lever to CLOSED position unless engine is warm. Turn ignition switch to Ignition switch OFF. -
Page 49: Pump
TAKING CARE OF UNEXPECTED PROBLEMS PUMP No Pump Output Possible Cause Correction Check pump Pump not primed. Prime pump (p. 18 ) chamber. Check suction hose. Hose collapsed, cut or Replace suction hose punctured. (p. 17 ). Strainer not completely Sink the strainer and underwater. -
Page 50: Technical & Consumer Information
TECHNICAL & CONSUMER INFORMATION TECHNICAL INFORMATION Serial Number Location WH20X 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 Engine serial number:... -
Page 51: Carburetor Modification For High Altitude Operation
TECHNICAL & 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. -
Page 52: Emission Control System Information
TECHNICAL & 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. - Page 53 TECHNICAL & CONSUMER INFORMATION Problems That May Affect Emissions If you are aware of any of the following symptoms, have your engine inspected and repaired by your servicing dealer. Hard starting or stalling after starting. Rough idle. Misfiring or backfiring under load. Afterburning (backfiring).
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Page 54: Air Index
TECHNICAL & CONSUMER INFORMATION Air Index An Air Index Information hang tag/label is applied to engines 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. -
Page 55: Specifications
TECHNICAL & 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 lbs (22 kg) Engine Model GX120K1 Engine type 4-stroke, overhead valve, single cylinder Displacement 7.3 cu-in (118 cc) [bore... - Page 56 TECHNICAL & 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 ) per minute Self-priming time 40 seconds at 16.4 ft (5 m)
- Page 57 TECHNICAL & CONSUMER INFORMATION WH20X Dimensions and weight Length 16.7 in (425 mm) Width 14.8 in (375 mm) Height 15.9 in (405 mm) Dry mass [weight] 51.8 lbs (23.5 kg) Engine design and performance Model GX160K1 Engine type 4-stroke, overhead valve, single cylinder Displacement 9.9 cu-in (163 cc) [bore...
- Page 58 TECHNICAL & CONSUMER INFORMATION WH20X (continued) Pump Suction port diameter 2 in (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 ) per minute Self-priming time 60 seconds at 16.4 ft (5 m)
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Page 59: Consumer Information
TECHNICAL & 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. -
Page 60: Customer Service Information
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 Relations Office. You can write to: American Honda Motor Co., Inc. - Page 61 MEMO...
- Page 62 MEMO...
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Page 63: Quick Reference Information
QUICK REFERENCE INFORMATION Unleaded gasoline with a pump Type octane rating of 86 or higher (page 28 ) Fuel WH15X: 0.53 US gal (2.0 ) Capacity WH20X: 0.82 US gal (3.1 ) Type SAE 10W-30, API SJ or later (or Engine Oil equivalent) for general use (page 31 ) - Page 64 2eY1800.2009.04 31YB7723 " 00X31-YB7-7230 Printed in Japan...