Thank you for purchasing a Honda water pump. 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; please read it carefully. This manual covers the operation and maintenance of Honda water pump: W D20X/W D30X All information in this publication is based on the latest product information available at the time of printing. Honda Motor Co., Ltd.
CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 2 WATER PUMP SAFETY .............................................................................. COMPONENT IDENTIFICATION.. ............................................................... PRE-OPERATION CHECK ............................................................................ STARTING THE ENGINE .......................................................................... OPERATION ......................................................................
I. WATER PUMP SAFETY To ensure safe operation l l l l l l l l l l l - For safety, never pump flammable or corrosive liquids such as gasoline or acid. Also, to avoid pump corrosion, never pump sea water, muddy water, chemical solutions, or caustic liquids such as used oil, wine, or milk. Operate the pump on a level surface. If the engine is tilted, fuel spillage may result.
SAFETY LABEL LOCATIONS The labels shown here contain important safety information. Please read them carefully. These labels are considered permanent parts of your water pump, so if a label comes off or becomes hard to read, contact your authorized Honda water pump dealer for a replacement.
2. COMPONENT IDENTIFICATION (WDZOX) (WD30X) MUFFLER / THROTTLE LEVER ENGINE 2WlTCH CHOKE LEVER \ STARTER GRIP \ FUEL VALVE’ w OIL FILLER CAP/DIPSTICK ENGINE SERIAL NUMBER . FUEL FILLER CAP PRIMIN IG WATER \ AIR CLEANER STRAINER I OIL DRAIN PLUG PUMP DRAIN PLUG * Record the engine serial number for your future reference.
3. PRE-OPERATION CHECK 1. Suction hose Use a commercially available hose, hose connector, and hose bands. The suction hose must be of reinforced, non-collapsible wall or wire braided hose to prevent suction collapse. The suction hose length should not be longer than necessary, as the pump performance is best when the pump is not far above the water level. Self-priming time is also proportional to the suction hose length. Using a longer suction hose will increase the selfpriming time.
3. Engine oil 1 I l l Engine oil is a major factor affecting engine performance and service life. Nondetergent oils and 2-stroke oils are not recommended because they have inadequate lubricating characteristics. Check the oil level with the pump on a level surface and the engine stopped. Use Honda 4-stroke oil, or an equivalent high detergent, premium quality motor oil certified to meet or exceed U.S. automobile manufacturer’s requirements for Service Classification SG, SF/CC, CD.
Fuel Recommendation 1. Remove the filler cap check fuel level. 2. Refill the tank if the fuel level is low. Do not fill above the shoulder the fuel strainer. l l l l l of Gasoline is extremely flammable and is explosive under certain conditions. Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow flames or sparks in the area where the engine is refueled or where gasoline is stored. Do not overfill the fuel tank( there should be no fuel in the filler neck 1.
Occasionally you may hear light “spark knock” or “pinging” 1 metallic rapping noise ) while operating under heavy loads. This is no cause for concern. If spark knock or pinging occurs at a steady engine speed, under normal load, change brands of gasoline. If spark knock or pinging persists, see an authorized Honda water pump dealer. j-iciq Running the engine engine damage.
5. Air cleaner Remove the wing nut, washer and air cleaner cover. Check the air cleaner element to be sure it is clean and in good condition. Clean or replace the element if necessary (p. 18 1. AIR CLEANER COVER AIR CLEANER ELEMENT 6. Priming water The pump chamber [NOTICE should be completely filled before operating. 1 Do not operate the pump without priming water or the pump will overheat. Operating the pump dry will destroy the pump seal.
1. Turn the fuel valve ON. 2. Close the choke lever. Do not use the choke if the engine is warm or the ambient temperatuie high. FUEL VALVE is CHOKE LEVER 3. Turn the engine switch to the ON position.
4. Move the throttle lever slightly to the left. THROTTLE LEVER 5. Pull the starter grip lightly until resistance is felt, then pull it briskly. Do not allow the starter grip to snap back against slowly to prevent damage to the starter. STARTER GRIP 12 the engine.
5.0PERATION 1. As the engine warms up, gradually open the choke. 2. Set the throttle at the desired speed.
Oil Alert System The Oil Alert System is designed to prevent engine damage caused by an insufficient amount of oil in the crankcase. Before the oil level in the crankcase can fall below the safe limit, the Oil Alert System will automatically shut down the engine (the engine switch will remain in the ON position). If the Oil Alert System shuts down the engine, the Oil Alert lamp will flash when you operate the starter, and the engine will not start. If this occurs, add engine oil (p. 7 1.
7. STOPPING THE ENGINE In an emergency: 1. To stop the engine in an emergency, position. turn the engine switch to the OFF , ENGINE SWITCH’ In nomal use: 1. Move the throttle lever fully to the right. 2. Turn the engine switch to the OFF position, 3. Turn the fuel valve OFF.
7. MAINTENANCE The purpose of the Maintenance Schedule is to keep the pump in the best operating condition. Inspect and service as indicated in the Maintenance Schedule below. Shut off the engine before performing any maintenance. If the engine must be operated, make sure the area is well-ventilated. The exhaust contains poisonous carbon monoxide gas; exposure can cause loss of consciousness and may lead to death. l Use only genuine HONDA parts or their equivalent for maintenance or repair.
1. Oil change Drain the oil while the engine is still warm draining. to assure rapid and complete 1. Remove the oil filler cap/dipstick and the drain plug to drain the oil. 2. Reinstall the drain plug and tighten securely. 3. Refill with the recommended oil (see page 7 1to the specified level. OIL CAPACITY: OIL FILLER CAP/ DIPSTICK 0.6 0 (0.6 US qt ,0.5 Imp qt) DRAIN PLUG OIL LEVEL Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods.
2. Air cleaner service A dirty air cleaner will restrict air flow to the carburetor. To prevent carburetor malfunction, service the air cleaner regularly. Service more frequently when operating the pump in extremely dusty areas. Never use gasoline or low flash point solvents element. A fire or explosion could result. for cleaning the air cleaner pziiiq Never run the engine without the air cleaner. Rapid engine wear will result from contaminants, such as dust and dirt being drawn into the engine. 1.
3. Spark plug service Recommended spark plug: BPRGES(NGK) W2OEPR-U(NlPPONDENS0) To ensure proper engine operation, gapped and free of deposits. the spark plug must be properly 1. Remove the spark plug. 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. 2. Visually inspect the spark plug. Discard it if the insulator is cracked chipped. Clean the spark plug with a wire brush if it is to be reused.
4.Check that the spark plug washer is in good condition, spark plug in by hand to prevent cross-threading. 5.After the spark plug is seated, compress the washer. tighten with a spark and thread plug wrench the to - If installing a new spark plug, tighten l/2 turn after the spark plug seats to compress the washer. - If reinstalling a used spark plug, tighten l/8l/4 turn after the spark plug seats to compress the washer. l l The spark plug must be securely tightened.
4.Spark arrester maintenance (optional part) 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. Allow it to cool before proceeding. 1. Remove the two 8 mm nuts, and remove the muffler. 2.Remove the two 4 mm screws, and remove the deflector from the muffler protector. 3.Remove the four 5 mm self-tapping screws, and remove the muffler protector from the muffler. 4.
8.TRANSPORTlNGlSTORAGE When transporting the water pump, turn the engine switch and the fuel valve OFF. Keep the water pump level to prevent fuel spillage. Fuel vapor or spilled fuel may ignite. Contact with a hot engine or exhaust system can cause serious burns or fires. Let the engine cool before transporting or storing the water pump. Before storing the pump for an extended period; 1. Be sure the storage area is free of excessive humidity and dust. 2. Clean the pump interior.
3. Service the fuel system according to the table below: a. With the fuel valve OFF, remove the carburetor drain screw. b. Drain the gasoline from the carburetor into a suitable container. c. If the tank is to be drained, turn the fuel valve ON and drain the fuel in the tank into a suitable container. d. Reinstall the drain screw and turn the fuel valve OFF. Gasoline is extremely flammable and is explosive under certain conditions. Perform this task in a well ventilated area with the engine stopped.
4. Change the engine oil. 5. Remove the spark plug and pour about a tablespoon of clean engine oil into the cylinder. Crank the engine several revolutions to distribute the oil,then reinstall the spark plug. 6. Pull the starter rope slowly until resistance is felt. Continue pulling until the notch on the starter pulley aligns with the hole on the recoil starter (see illustration below). At this point,the intake and exhaust valves are closed. This will help to protect the engine from internal corrosion.
When the engine will not start: 1. Is the engine switch ON? 2. Is there enough fuel? 3. Is the fuel valve ON? 4. Is gasoline reaching the carburetor? 5. To check, remove the drain screw and turn the fuel valve ON. Fuel should flow out freely. If any fuel is spilled, make. sure the area is dry before testing plug or starting the engine. Spilled fuel or fuel vapor may ignite. the spark DRAIN 5. Is there a spark at the spark plug? a. Remove the spark plug cap.
When the pump does not pump water: 1. Is the pump fully primed? 2. 3. 4. 5. 6. 7. Is the strainer clogged? Are the suction hose bands installed securely? Is the suction hose connector washer installed? Is the suction hose damaged? Is the suction head too high? If the pump still does not operate, take the pump to an authorized water pump dealer.
10. SPECIFICATIONS WD20X WZAS Model Power equipment descrimion code Dimensions Length Width Height Dry weight and Weight 520 mm (20.5 in) 400 mm (15.7 in) 450 mm (17.7 in) 25 kg (55 Ibs) Engine Model Engine type Displacement [Bore X Stroke1 Max. output Max. torque Cooling system Ignition system PTO shaft rotation GX120 Kl 4-stroke, over head valve,lcylinder 118 cm3 (7.2 cu-in) 60 x 42 mm (2.4 x 1.7 in) 4.0 PS/4,000 rpm 0.75 kg-m (5.
Model Power equipment description code Dimensions Length Width Height Drv weiaht WDBOX WZAU and Weight 520 mm (20.5 in) 400 mm (I 5.7 in) 490 mm (19.3 in1 30 kc (66 Ibs) Engine Model Engine type Displacement [Bore X Stroke1 Max. output Max. torque Cooling system Ignition system PTO shaft rotation GX160 Kl Cstroke, over head valve,1 cylinder 163 cm3 (9.9 cu-in) 68 x 45 mm (2.7 x 1.8 in) 5.5 PS/4,000 rpm 1 .I kg-m (8.
11. CUSTOMER SERVICE INFORMATION Honda power equipment 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 halp. Almost all problems are solved in this way.
Current customer service contact information: United States, Puerto Rico, and U.S. Virgin Islands: Honda Power Equipment 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.
12. INDEX ......................................................................... COMPONENT IDENTIFICATION .......................................................... CUSTOMER SERVICE INFORMATION MAINTENANCE ................................................................................................ Air cleaner service.. ...................................................................................... Oil change ......................................................................................
MEMO 31
MEMO 32