Honda WB20X Owner's Manual
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Honda WB20X Owner's Manual

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  • 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 any time. it at is considered a permanent part of the water This owner's manual pump and should remain with the water pump if resold.
  • Page 3 Congratulations on your selection of a Honda water pump. We 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 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.

  • Page 5: Table Of Contents

    ................... SAFETY PUMP ..........IMPORTANT SAFETY INFORMATION ..............SAFETY LABEL LOCATIONS ....................CONTROLS ..........COMPONENT & CONTROL LOCATIONS ................... CONTROLS ................Fuel Valve Lever .................. Ignition Switch ..................Choke Lever ................... Throttle Lever ................Recoil Starter Grip ................BEFORE OPERATION ..........
  • Page 6 CONTENTS SERVICING YOUR PUMP (continued) ..............AIR FILTER INSPECTION ................ AIR FILTER CLEANING ..............SEDIMENT CUP CLEANING ................ SPARK PLUG SERVICE ..............IDLE SPEED ADJUSTMENT ......SPARK ARRESTER SERVICE (optional equipment) ....................STORAGE ..............STORAGE PREPARATION .................... Cleaning ....................Fuel ..................

  • Page 7: Pump Safety

    PUMP SAFETY IMPORTANT SAFETY INFORMATION Honda WB20X and WB30X 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 hot. Let the engine cool before transporting the pump 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.

  • 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. WARNING- DO NOT PUMP FLAMMABLE OR CORROSIVE MATERIALS.

  • Page 10: Controls

    CONTROLS COMPONENT & CONTROL LOCATIONS < > WBZOX CARRYING HANDLE FUEL FILLER MUFFLER OIL DRAIN PLUG FUEL VALVE LEVER...
  • Page 11 CONTROLS < > WB30X FUEL FILLER CAP MUFFLER FRAME AIR CLEANER PUMP DRAIN CAP STRAINER OIL DRAIN PLUG...

  • Page 12: Controls

    CONTROLS CONTROLS Fuel Valve Lever The fuel valve opens and closes 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...

  • Page 13: Choke Lever

    CONTROLS Choke Lever The choke lever opens and closes CHOKE LEVER the choke valve in the carburetor. The CLOSED position enriches the fuel mixture for starting a cold engine. The OPEN position provides the correct fuel mixture for operation after starting, and for restarting a warm engine.

  • Page 14: Recoil Starter Grip

    CONTROLS Recoil Starter Grip Pulling the starter grip operates the recoil starter to crank the engi STARTER GRIP...

  • Page 15: 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 16: 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 few moments before you operate the pump to check condition. Be sure to take care of any problem you find, or have your servicing dealer correct before you operate the pump.

  • Page 17: Check The Suction And Discharge Hoses

    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 prevent hose collapse. Check that the sealing washer in the suction hose connector is in good condition (see page 18 Check that the hose connectors and clamps are securely installed (see pages 18&...

  • Page 18: Operation

    SAFE OPERATING PRECAUTIONS safely realize the full potential of this pump, you need a complete understanding of its operation and certain amount of practice with its controls. Before operating the pump for the first time, please review the IMPORTANT SAFENINFORMATlON on page and the chapter titled BEFORE OPERA TION.

  • Page 19: 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.

  • Page 20: 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.

  • Page 21: Discharge Hose Installation

    OPERATION DISCHARGE HOSE INSTALLATION Use a commercially available HOSE CONNECTOR DISCHARGE HOSE hose and hose connector, and clamp provided with the pump. It is best to use a short, large-dia- meter hose, because that will reduce fluid friction and improve pump output.

  • Page 22: Starting The Engine

    OPERATION STARTING THE ENGINE 1. Prime the pump (see page 19 ). 2. Move the fuel valve lever to the 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.
  • Page 23 OPERATION 5. Turn the ignition switch to the ON position. IGNITION SWITCH 6. Pull the starter grip lightly until resistance is felt, then pull it briskly. Do not allow the starter grip to snap back against the engine. Return gently to prevent damage to the starter.

  • Page 24: Setting Engine Speed

    OPERATION 7. 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 SETTING ENGINE SPEED After starting the engine, move the throttle lever to the FAST position for self-priming, and check pump output.

  • Page 25: 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. 1. Move the throttle lever to the SLOW position. THROlTLE LEVER OFF position. 2.
  • Page 26 OPERATION OFF position. Turn the fuel valve lever to the After use, remove the pump drain plug (see page 41 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.

  • Page 27: 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 28: 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 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 29: Maintenance Schedule

    SERVICING YOUR PUMP MAINTENANCE SCHEDULE Every 3 months 6 months year 50 Hrs. 100 Hrs. 300 Hrs. chamber Every 2 years (Replace if necessary) (2) Check tube Fuel Impeller Impeller clearance Check Pump inlet valve Check Emission-related items. Service more frequently when used in dusty areas. These items should be serviced your servicing dealer, unless have the proper tools and are mechanically proficient.

  • Page 30: Refueling

    SERVICING YOUR PUMP REFUELING Fuel tank capacities 0.66 US gal (2.5 !2,0.55 Imp gal) WB20X: WB30X: 0.95 (3.6 !2,0.79 Imp gal) 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.

  • Page 31: Fuel Recommendations

    SERVICING YOUR PUMP Refuel in a well-ventilated area before starting the engine. If the engine has been running, allow to cool. Refuel carefully to avoid spilling fuel. Do not fill the fuel tank above the fuel strainer shoulder. After refu tighten the fuel tank cap securely.

  • Page 32: Engine Oil Level Check

    SERVICING YOUR PUMP ENGINE OIL LEVEL CHECK with the engine stopped and in a level Check the engine oil 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.

  • Page 33: Engine Oil Change

    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 t o catch the used oil, then remove the oil filler capldipstick and the drain plug. 2.Allow the used oil to drain completely, then reinstall the drain plug, and tighten it securely.

  • Page 34: Engine Oil Recommendations

    SERVICING YOUR PUMP ENGINE OIL RECOMMENDATIONS O i l i s a major factor affecting performance and service life. Use oil. 4-stroke automotive detergent SAE IOW-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.

  • Page 35: Servicing Your Pump (Continued)

    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 34. Replace the air filter if is damaged.

  • Page 36: 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 27 1.

  • Page 37: Sediment Cup Cleaning

    SERVICING YOUR PUMP SEDIMENT CUP CLEANING 1. Move the fuel valve lever to the 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 38: 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: BPRGES (NGK) W20EPR-U (DENSO) p E q Incorrect spark plugs can cause engine damage. 1. Disconnect the spark plug cap, and remove any dirt from around the spark plug area.
  • Page 39 SERVICING YOUR PUMP 5. Install the spark plug carefully, by hand, to avoid cross-threading. a 13/16-inch spark plug 6.After the spark plug seats, tighten with wrench to compress the washer. If reinstalling the used spark plug, tighten 1/8-1/4 turn after the spark plug seats.

  • Page 40: Idle Speed Adjustment

    SERVICING YOUR PUMP IDLE SPEED ADJUSTMENT 1. Start the engine outdoors, and allow 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. 2. Move the throttle lever to its slowest position. 3.

  • Page 41: 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 A spark arrester is available local laws and regulations. from authorized Honda servicing dealers.

  • Page 42: Storage

    STORAGE PREPARATION Proper storage preparation is essential for keeping your pump troublefree 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.

  • Page 43: Fuel

    STORAGE 4. Stop the engine, and allow it to cool. 5. 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. 6. After the pump is clean and dry, touch up any damaged paint, and coat...
  • Page 44 STORAGE Adding a Fuel Stabilizer to Extend Fuel Storage Life When adding a fuel stabilizer, fill the fuel tank with fresh gasoline. If will promote fuel deterioration only partially filled, air in the tank during storage. If you keep container of gasoline for refueling, sure fresh it contains...
  • Page 45 STORAGE 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. Gasoline is highly flammable and explosive.

  • Page 46: Engine Oil

    STORAGE Engine Oil 1. Change the engine oil (see page 31 ). 2. Remove the spark plug (see page 36 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.

  • Page 47: 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 48: 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 OFF position.

  • Page 49: Taking Care Of Unexpected Problems

    TAKING CARE OF UNEXPECTED PROBLEMS ENGINE Correction Possible Cause Engine Will Not Start Move fuel valve lever 1. Check control Fuel valve OFF. to ON Dosition. positions. Move choke lever to Choke open. CLOSED position unless engine is warm. Turn ignition switch to Ignition switch OFF.

  • Page 50: Pump

    TAKING CARE OF UNEXPECTED PROBLEMS PUMP No Pump Output Possible Cause Correction Check pump Pump primed. Prime pump chamber. 2. Check suction hose. Hose collapsed, cut or Replace suction hose punctured. Strainer not completely Sink the strainer and underwater. the end of a suction hose completely underwater.

  • Page 51: Technical Information

    TECHNICAL & CONSUMER INFORMATION TECHNICAL INFORMATION Serial Number Location < > WBZOX ENGINE SERIAL NUMBER < > WBBOX FRAME SERIAL ENGINE SERIAL NUMBER NUMBER Record the frame serial number (if assigned) and the engine serial number in the space below. You will need these serial numbers when ordering parts, and when making technical or warranty inquiries (see page 60 ).

  • Page 52: 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 a t an altitude that differs from that at which this engine was certified, for extended periods of time, may increase emissions.

  • Page 53: Oxygenated Fuels

    TECHNICAL & CONSUMER INFORMATION Oxygenated Fuels Some conventional gasolines are being blended with alcohol or an ether compound. These gasolines are collectively referred to as oxygenated fuels. To meet clean air standards, some areas of the United States and Canada use oxygenated fuels to help reduce emissions.

  • Page 54: Emission Control System 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 is toxic.
  • Page 55 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).

  • Page 56: Air Index

    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 57: Specifications

    Specifications WB20X Dimensions and weight 17.5 in (445 mm) Length Width 13.6 in (345 mm) 15.6 in (395 Height Dry weight 43.0 Ibs (19.5 kg) Engine design and performance Model GX120K1 Engine type 4-stroke, overhead valve, single cylinder 7.3 cu-in (1 19 cc) Displacement [2.4 1.7 in (60...
  • Page 58 WBPOX (continued) Pump 2 in (50 mm) Suction port diameter 2 in (50 mm) Discharge port diameter (32 m) Total head (maximum) 26.2 (8 m) Suction head (maximum) 158.5 gal (600 8 , 132.0 Imp gal) Discharge capacity (maximum) per minute Self-priming time seconds 16.4...
  • Page 59 TECHNICAL & CONSUMER INFORMATION WB30X Dimensions and weight 20.3 in (515 Length Width 15.7 in (400 mm) 17.7 in (450 mm) Height 59.5 Ibs (27.0 kg) Dry weight Engine design and performance GX160K1 Model type 4-stroke, overhead valve, single cylinder Engine 9.9 cu-in (163 cc) Displacement [2.7...
  • Page 60 TECHNICAL & CONSUMER INFORMATION WB30X (continued) Pump in (80 mm) Suction port diameter Discharge port diameter (28 m) Total head (maximum) 26.2 f t Suction head (maximum) 290.6 gal (1,100 I ? , , 242.0 Imp Discharge capacity (maximum) gal) per minute Self-priming time 150 seconds 16.4...

  • Page 61: 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 62: 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: American Honda Motor Co., Inc.

  • Page 63: Quick Reference Information

    QUICK REFERENCE INFORMATION Unleaded gasoline with a pump octane rating of 86 or higher (page 29 ) WB20X: Fuel Capacity 0.66 US gal (2.5 !2,0.55 Imp gal) WB30X: 0.95 US gal (3.6 !2 0.79 Imp gal) SAE IOW-30, API SJ, for general TY Pe use (page 32 Engine Oil...

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