Honda WB20XT Owner's Manual
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Summary of Contents for Honda WB20XT
- Page 1 Owner ’s Manual PUMP WB20XT/WB30XT © 2011 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 ................... 10 Fuel Valve Lever ................10 Ignition Switch ................. . 10 Choke Lever ..................11 Throttle Lever .................. - Page 6 CONTENTS SERVICING YOUR PUMP (continued) AIR FILTER INSPECTION ..............34 AIR FILTER CLEANING ............... . 35 SEDIMENT CUP CLEANING ..............36 SPARK PLUG SERVICE ............... . 37 SPARK ARRESTER SERVICE (optional equipment) ......39 STORAGE ....................40 STORAGE PREPARATION ..............
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Page 7: Pump Safety
PUMP SAFETY IMPORTANT SAFETY INFORMATION Honda WB20XT and WB30XT 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 injuries or property damage 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. -
Page 10: Controls
CONTROLS COMPONENT & CONTROL LOCATIONS WB20XT THROTTLE LEVER DISCHARGE PORT CHOKE FUEL FILLER CAP LEVER FUEL VALVE LEVER OIL FILLER CAP/DIPSTICK RECOIL STARTER GRIP IGNITION SWITCH STRAINER PRIMING WATER MUFFLER FRAME FILLER CAP AIR CLEANER SUCTION PORT PUMP DRAIN CAP OIL DRAIN PLUG... - Page 11 CONTROLS WB30XT THROTTLE LEVER DISCHARGE PORT CHOKE FUEL FILLER CAP LEVER FUEL VALVE LEVER OIL FILLER CAP/DIPSTICK RECOIL STARTER GRIP IGNITION SWITCH STRAINER PRIMING WATER MUFFLER FRAME FILLER CAP AIR CLEANER SUCTION PORT PUMP DRAIN CAP OIL DRAIN PLUG...
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Page 12: Controls
CONTROLS CONTROLS Fuel Valve Lever The fuel valve opens and closes FUEL VALVE LEVER the passage 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 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. OPEN 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 recoil starter grip operates the recoil starter to crank the engine. RECOIL STARTER GRIP... -
Page 15: 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 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 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 17: 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 18: 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 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. The length, type, and size of the suction and discharge hoses can also significantly affect pump output. -
Page 20: Suction Hose Installation
OPERATION SUCTION HOSE INSTALLATION Use a commercially available hose and hose connector with the hose clamp provided with the pump (if necessary). Most hoses come with the connectors already installed. The suction hose must be reinforced with a noncollapsible wall or braided wire construction and cannot contain any perforations. -
Page 21: Discharge Hose Installation
OPERATION DISCHARGE HOSE INSTALLATION Use a commercially available hose and hose connector and clamp provided with the pump (if necessary). It is best to use a short, large-diameter hose, because that will reduce fluid friction and improve pump output. A long or small-diameter hose will increase fluid friction and reduce pump output. -
Page 22: Priming The Pump
OPERATION PRIMING THE PUMP 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. 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. -
Page 23: 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 24 OPERATION Turn the ignition switch to the ON position. IGNITION SWITCH Pull the recoil starter grip lightly until you fill resistance, and then pull briskly. Do not allow the recoil starter grip to snap back against the engine. Return it gently to prevent damage to the starter. RECOIL STARTER GRIP...
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Page 25: 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 26: 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 27 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, and then reinstall the filler cap and drain plug.
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Page 28: 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 29: 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 30: Maintenance Schedule
SERVICING YOUR PUMP MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD (3) First Every Every Every ITEM Each month 3 months 6 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 31: Refueling
SERVICING YOUR PUMP REFUELING With the engine stopped and on a level surface, 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. -
Page 32: Fuel Recommendations
SERVICING YOUR PUMP 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. -
Page 33: 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 34: 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, and then remove the oil filler cap/dipstick, drain plug and sealing washer. -
Page 35: Engine Oil Recommendation
SERVICING YOUR PUMP ENGINE OIL RECOMMENDATION 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 36: 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 37: 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 38: 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 39: 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) Incorrect spark plugs can cause engine damage. For good performance, the spark plug must be properly gapped and free of deposits. - Page 40 SERVICING YOUR PUMP Install the spark plug carefully, by hand, to avoid cross-threading. 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.
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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 local laws and regulations. A spark arrester is available from authorized Honda servicing dealers. -
Page 42: 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 43: 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, and 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 44 STORAGE Adding a Fuel Stabilizer to Extend Fuel Storage Life Short Term Storage (30 90 days) If your equipment will not be used for 30 90 days, we recommend the following to prevent fuel-related problems: Add fuel stabilizer following the manufacturer’s instructions. When adding a fuel stabilizer, fill the fuel tank with fresh gasoline.
- Page 45 STORAGE Long Term or Seasonal Storage (greater than 90 days) 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, and then move the fuel valve lever to the ON position.
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Page 46: Engine Oil
STORAGE Engine Oil Change the engine oil (see page Engine Cylinder Remove the spark plug (see page Pour a teaspoon (5 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 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 fuel leakage. -
Page 49: Taking Care Of Unexpected Problems
TAKING CARE OF UNEXPECTED PROBLEMS ENGINE Engine Will Not Start Possible Cause Correction 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. Out of fuel. -
Page 50: Pump
TAKING CARE OF UNEXPECTED PROBLEMS PUMP No Pump Output Possible Cause Correction Pump not primed. Prime pump (p. 20 ) Hose collapsed, cut or punctured. Replace suction hose (p. 18 ). Strainer not completely underwater. Sink the strainer and the end of the suction hose completely underwater. -
Page 51: Technical Information
TECHNICAL INFORMATION Serial Number Location WB20XT WB30XT ENGINE SERIAL NUMBER FRAME SERIAL 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 Engine serial number: Frame serial number:... -
Page 52: Carburetor Modification For High Altitude Operation
TECHNICAL 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 53: Emission Control System Information
TECHNICAL 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 54 TECHNICAL 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 55: Air Index
TECHNICAL 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 56: Specifications
TECHNICAL INFORMATION Specifications WB20XT Dimensions and weight Length 17.9 in (455 mm) Width 14.4 in (365 mm) Height 16.5 in (420 mm) Dry mass [weight] 46 lbs (21 kg) Engine design and performance Model GX120 Engine type 4-stroke, overhead valve, single cylinder Displacement 7.2 cu-in (118 cm ) [bore... - Page 57 TECHNICAL INFORMATION WB20XT (continued) Pump Suction port diameter 2.0 in (50 mm) Discharge port diameter 2.0 in (50 mm) Total head (maximum) 92.4 ft (28 m) Suction head (maximum) 26.4 ft (8 m) Discharge capacity (maximum) 151.9 US gal (575 L) per minute Self-priming time 110 seconds at 16.4 ft (5 m)
- Page 58 TECHNICAL INFORMATION WB30XT Dimensions and weight Length 20.1 in (510 mm) Width 15.2 in (385 mm) Height 17.9 in (455 mm) Dry mass [weight] 60 lbs (27 kg) Engine design and performance Model GX160 Engine type 4-stroke, overhead valve, single cylinder Displacement 9.9 cu-in (163 cm ) [bore...
- Page 59 TECHNICAL INFORMATION WB30XT (continued) Pump Suction port diameter 3.1 in (80 mm) Discharge port diameter 3.1 in (80 mm) Total head (maximum) 85.8 ft (26 m) Suction head (maximum) 26.4 ft (8 m) Discharge capacity (maximum) 275.0 US gal (1,041 L) per minute Self-priming time 150 seconds at 16.4 ft (5 m)
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Page 60: Consumer Information
CONSUMER INFORMATION DEALER LOCATOR INFORMATION To find an authorized Honda Servicing Dealer anywhere in the United States: Visit our web site: www.HondaPowerEquipment.com and click on Dealer Locator. Honda PUBLICATIONS Shop Manual 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 Inc. -
Page 61: 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 62: Quick Reference Information
QUICK REFERENCE INFORMATION Unleaded gasoline with a pump Fuel Type octane rating of 86 or higher (page 30 ) Type SAE 10W-30, API SJ, for general use (page 33 ) Engine Oil WB20XT: Capacity 0.59 US qt (0.56 L) WB30XT: 0.61 US qt (0.58 L) Spark Plug Type... - Page 63 00X31YG36100...