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3QYG46100_EN.book Page -1 Friday, October 19, 2018 1:53 PM Honda WB20XT, WB30XT OWNER’S MANUAL Original instructions MANUEL DE L’UTILISATEUR Notice originale BEDIENUNGSANLEITUNG Originalbetriebsanleitung MANUAL DEL PROPIETARIO Manual original MANUALE DELL'UTENTE Traduzione delle istruzioni originali...
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All information in this publication is based on the latest product information available at the time of approval for printing. Honda Motor Co., Ltd. reserves the right to make changes at any time without notice and without incurring any obligation.
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3QYG46100_EN.book Page 1 Friday, October 19, 2018 1:53 PM Disposal To protect the environment, do not dispose of this product, battery, engine oil, etc. carelessly by leaving them in the waste. Observe the local laws and regulations or consult your authorized Honda dealer for disposal.
3QYG46100_EN.book Page 3 Friday, October 19, 2018 1:53 PM 1. SAFETY INSTRUCTION To ensure safe operation – • Honda water pump is designed to give safe and dependable service if operated according to instructions. Read and understand the Owner’s Manual before operating the water pump.
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3QYG46100_EN.book Page 4 Friday, October 19, 2018 1:53 PM To ensure safe operation – • Never attempt to modify the water pump. It can cause an accident as well as damage to the water pump and appliances. Tampering with the engine voids the EU type-approval of this engine. –...
Read the labels and safety notes and precautions described in this manual carefully. If a label comes off or becomes hard to read, contact your servicing dealer for a replacement. CE mark and noise label locations [Example: WB20XT] NOISE LABEL [Example: WB20XT]...
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3QYG46100_EN.book Page 6 Friday, October 19, 2018 1:53 PM CE MARK Name and address of Name and address of the manufacturer authorized representative and importer Year of manufacture Machine mass Model Name and address of manufacturer, authorized representative and importer are written in the "EC Declaration of Conformity"...
3QYG46100_EN.book Page 7 Friday, October 19, 2018 1:53 PM 3. COMPONENT IDENTIFICATION <WB20XT> DISCHARGE PORT THROTTLE LEVER FUEL FILLER CAP CHOKE LEVER FUEL VALVE LEVER OIL FILLER CAP STRAINER ENGINE SERIAL NUMBER STARTER GRIP IGNITION SWITCH MUFFLER FRAME PRIMING WATER FILLER CAP...
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3QYG46100_EN.book Page 8 Friday, October 19, 2018 1:53 PM <WB30XT> DISCHARGE PORT THROTTLE LEVER FUEL FILLER CAP CHOKE LEVER FUEL VALVE LEVER OIL FILLER CAP STARTER GRIP ENGINE SERIAL NUMBER STRAINER IGNITION SWITCH PRIMING WATER MUFFLER FRAME FILLER CAP AIR CLEANER SUCTION PORT FRAME SERIAL NUMBER...
3QYG46100_EN.book Page 9 Friday, October 19, 2018 1:53 PM 4. PRE-OPERATION FOR STARTING Before each use, look around and underneath the engine for signs of oil or gasoline leaks. 1. Connect the suction hose. Use commercially available hose, hose connector, and hose bands. The suction hose must be of reinforced, noncollapsible construction.
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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. Lubrication oil specifications necessary to maintain the performance of the emissions control system: Honda genuine oil. AMBIENT TEMPERATURE...
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3QYG46100_EN.book Page 11 Friday, October 19, 2018 1:53 PM Check the engine oil level with the engine stopped and in a level position. 1. Remove the oil filler cap. 2. Check the oil level. If it is below the upper limit, fill with the recom- mended oil (see page 10) to the upper limit.
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3QYG46100_EN.book Page 12 Friday, October 19, 2018 1:53 PM 4. Check the fuel level. Use automotive unleaded gasoline with a Research Octane Number of 91 or higher (a Pump Octane Number of 86 or higher). Fuel specification(s) necessary to maintain the performance of the emissions control system: E10 fuel referenced in EU regulation.
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Gasolines containing alcohol If you decide to use a gasoline containing alcohol (gasohol), be sure its octane rating is at least as high as that recommended by Honda. There are two types of ‘‘gasohol’’: one containing ethanol, and the other containing methanol.
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3QYG46100_EN.book Page 14 Friday, October 19, 2018 1:53 PM 5. Check the air cleaner element. Unscrew the wing nut and remove the air cleaner cover. Check the element for dirt or obstruction. Clean the element if necessary (see page 23). <WB20XT> <WB30XT> WING NUT WING NUT COVER...
3QYG46100_EN.book Page 15 Friday, October 19, 2018 1:53 PM 5. STARTING THE ENGINE 1. Turn the fuel valve lever to the ON position. 2. Move the choke lever to the CLOSED position. NOTE: Do not use the choke if the engine is warm or the ambient temperature is high.
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3QYG46100_EN.book Page 16 Friday, October 19, 2018 1:53 PM 4. Move the throttle lever slightly to the left. SLOW FAST THROTTLE LEVER 5. Pull the starter grip lightly until you feel resistance, then pull briskly in the direction of the arrow as shown below. CAUTION: Do not allow the starter grip to snap back against the engine.
3QYG46100_EN.book Page 17 Friday, October 19, 2018 1:53 PM 6. 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 up. CHOKE LEVER OPEN OPEN •...
3QYG46100_EN.book Page 18 Friday, October 19, 2018 1:53 PM 6. OPERATION CAUTION: Never use the pump for muddy water, rejected oil, wine, etc. 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.
3QYG46100_EN.book Page 19 Friday, October 19, 2018 1:53 PM 7. 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 fully to the right. 2.
• If the pump has been used with sea water, etc., clean it with fresh water immediately afterward to reduce corrosion or remove sediment. • Use genuine Honda parts or their equivalent for maintenance or repair. Replacement parts which are not of equivalent quality may damage the pump.
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(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 the Honda shop manual for service procedures. (3) For commercial use, log hours of operation to determine proper maintenance...
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3. With the engine in a level position fill with the recommended oil (see page 10) to the upper limit. OIL CAPACITY: WB20XT: 0.56 L (0.59 US qt, 0.49 lmp qt) WB30XT: 0.58 L (0.61 US qt, 0.51 lmp qt)
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3QYG46100_EN.book Page 23 Friday, October 19, 2018 1:53 PM 2. Air cleaner service 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 21).
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3QYG46100_EN.book Page 24 Friday, October 19, 2018 1:53 PM Form filter element: Clean the air filter in warm soapy water, rinse, and allow to dry thor- oughly. Or clean in nonflammable solvent and allow to dry. Dip the air filter in clean engine oil, and then squeeze out all excess oil.
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3QYG46100_EN.book Page 25 Friday, October 19, 2018 1:53 PM 3. Sediment cup cleaning Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. • Stop the engine and let it cool before handling fuel. •...
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3QYG46100_EN.book Page 26 Friday, October 19, 2018 1:53 PM 4. Spark plug service Recommended spark plug: BPR6ES(NGK) To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. 1. Disconnect the spark plug cap and then remove the spark plug with the spark plug wrench.
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3QYG46100_EN.book Page 27 Friday, October 19, 2018 1:53 PM 4. Check that the spark plug washer is in good condition, and thread the spark plug in by hand to prevent cross-threading. 5. After the spark plug seats, tighten with a 21 mm (13/16-inch) spark plug wrench to compress the washer.
3. Drain the fuel..<WB20XT> a. Place an approved gasoline container below the carburetor, and use a funnel to avoid spilling fuel.
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3QYG46100_EN.book Page 29 Friday, October 19, 2018 1:53 PM <WB30XT> a. Place an approved gasoline container below the carburetor, and use a funnel to avoid spilling fuel. b. Move the fuel valve lever to the ON position and loosen the carburetor drain bolt by turning 1 to 2 turns counterclockwise.
3QYG46100_EN.book Page 30 Friday, October 19, 2018 1:53 PM 10. TROUBLESHOOTING When the engine will not start: 1. Is there enough fuel? 2. Is the fuel valve ON? 3. Is gasoline reaching the carburetor? To check, move the fuel valve lever to the ON position and loosen the carburetor drain bolt by turning 1 to 2 turns counterclockwise.
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3QYG46100_EN.book Page 31 Friday, October 19, 2018 1:53 PM When the pump cannot pump the water: 1. Is the pump fully primed? 2. Is the strainer clogged? 3. Are the hose bands installed securely? 4. Are the hoses damaged? 5. Is the suction head too high? 6.
Carbon dioxide (CO2) Please refer to "CO2 Information List" on emissions** www.honda-engines-eu.com/co2 * The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in...
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3QYG46100_EN.book Page 33 Friday, October 19, 2018 1:53 PM Pump Model WB20XT4 WB30XT3 Suction port diameter 50 mm (2.0 in) 80 mm (3.1 in) Discharge port diameter 50 mm (2.0 in) 80 mm (3.1 in) Max. idling speed 3,900±100 min (rpm) 3,900±100 min (rpm)