The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. This owner’s manual is considered a permanent part of your diaphragm pump. It must be available to all operators of the pump and should remain with the pump if resold. The information and specifications in this publication were in effect at the time of approval for printing. American Honda Motor Co., Inc.
INTRODUCTION Congratulations on your selection of a Honda diaphragm pump. We are certain you will be pleased with your purchase of one of the finest pumps on the market. We want to help you get the best results from your new pump and to operate it safely. This manual contains the information on how to do that; please read it carefully. As you read this manual, you will find information preceded by a -1 symbol.
INTRODUCTION A FEW WORDS ABOUT SAFETY Your safety, and the safety of others, are very important. And using this 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. This information alerts you to potential hazards that could hurt you or others. Of course, it is not practical or possible to warn you about all the hazards associated with operating or maintaining a pump.
CONTENTS Turn to the beginning of each chapter for a complete list of subjects. PUMP SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Important information about some specific hazards, and what you can do to prevent injury. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Identification of components and information about how the controls work. BEFORE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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PUMP SAFETY This chapter explains what you need to know to operate your diaphragm pump safely. ................ IMPORTANT SAFETY INFORMATION Operator Responsibility ........................... Pump Operation. ................................ Refuel With Care ................................ Hot Exhaust .................................... Carbon Monoxide Hazards ........................ SAFETY LABEL LOCATION ........................
PUMP SAFETY IMPORTANT SAFETY INFORMATION Honda WDP20X and WDP30X pumps are not designed to pump drinking water. Pump only non-potable water, muddy water, and water containing solids. 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. The most common hazards are discussed below, along with the best way to protect yourself and others.
I 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. To prevent fire hazards, keep the pump at least 3 feet (1 meter) away from building walls and other equipment during operation. Do not place flammable objects close to the engine. Carbon Monoxide Hazards Exhaust gas contains poisonous carbon monoxide.
PUMP SAFETY SAFETY LABEL LOCATION The label shown here contains important safety information. Please read it carefully. This label is considered a permanent part of your pump. So if the label comes off or becomes hard to read, contact your authorized Honda pump dealer for a replacement. DO NOT PUMP FLAMMABLE LIQUIDS. Pump can explode and you can be seriously hurt or killed. Follow the Owner’s Manual instructions carefully.
CONTROLS This chapter shows you the locations of controls and other important parts of your pump, and tells you how the controls work. .................... 10 DESCRIPTION OF CONTROLS. .................... Throttle Lever. ............................... ChokeLever ................................. ............................. FuelValveLever Ignition Switch ............................... Oil Alert” System ............................. Recoil Starter. ...............................
CONTROLS COMPONENT IDENTIFICATION SERIAL NUMBER THROTTLE CAP/DIPSTICK SERIAL NUMBER FUEL FILLER CAP LIFTING BRACKET AIR CLEANER AIR CUSHION CHAMBER CAP (priming yp) AME STkAlNER 2 inch - WDPSOX 3 inch - WDP30X OIL DRAIN PLUG Record the frame and engine serial numbers in the space below. You will need these serial numbers when ordering parts and when making technical or warranty inquiries (see page 66).
CONTROLS DESCRIPTION OF CONTROLS You will use these controls every time you operate your diaphragm pump. Throttle Lever The throttle lever controls the engine speed. Moving the throttle lever fully to the left gives maximum engine speed. Moving the throttle lever fully to the right returns the engine to idle speed. The pump output can be controlled by adjusting the throttle lever to the desired position. At maximum throttle position, the pump will deliver the highest output volume.
CONTROLS Ignition Switch OIL ALERT The ignition switch allows the operator to start and stop the engine. Switch positions: OFF: To stop the engine. ON: To start and run the engine. Oil AlertTM 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 a safe limit, the Oil Alert system will automatically shut down the engine (the ignition switch will remain in the ON position).
This chapter tells you how to prepare your pump and yourself before you begin pumping. ARE YOU READY TO GET STARTED? Knowledge .................................... IS YOUR Check Check Check ..... m........ PUMP READY TO GO? ................... the General Condition of the Pump ........... the Suction and Discharge Hoses ............ the Engine ..............................
BEFORE OPERATION ARE YOU READY TO GET STARTED? Your safety is your responsibility. A little time spent in preparation significantly reduce your risk of injury. will Knowledge Read and understand this manual. Know what the controls do and how to operate them. Familiarize yourself with the pump and its operation pumping. Know what to do in case of emergencies. before you begin Be sure of what you are pumping. This pump is designed to pump only non-potable water, muddy water, and water containing solids.
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. Improperly maintaining this pump, or failing to correct a problem before operation, could cause a malfunction in which you could be seriously injured.
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 of reinforced construction to prevent hose collapse. l l l Check that the sealing washer in the suction hose connector good condition (see page 21). Check that the hose connectors (see pages 21 & 22).
OPERATION This chapter tells how to operate your pump safely and effectively. 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. Read this chapter completely before operating the pump. Take time to familiarize yourself with the controls and how they operate. The small amount of time spent in familiarization will reward you with greater efficiency and reduced risk.
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 /NFORMA.T/ON on page 6 and the chapter tilted BEFORE OPERATION. For you safety, avoid starting or operating the engine in an enclosed area, such as a garage.
OPERATION Due to the pump diaphragm reciprocating motion, pump assembly and hoses will move up and down and side-to-side during pumping. This may cause the pump to walk or move around while pumping. Depending on the surface conditions, pump hose length, and other factors it may be necessary to anchor the pump to limit pump movement. During operation, observe pump movement and anchor the pump frame as necessary. To anchor the pump, attach anchored tie down straps to the pump lift handles.
OPERATION When water being pumped contains solids, the solids may get lodged under the clappet valves which will prevent the clappet valves from closing completely. To maintain maximum pump performance, the discharge hose should angle upward as it exits the pump. DISCHARGE HOSE If the discharge hose must run across a roadway, the hose should cross the roadway perpendicular to traffic flow.
OPERATION PUMP PREPARATION Suction Hose Connection Use a commercially available hose, hose connector, and hose clamps. Hose must be the same size or larger than the suction port. To prevent hose from collapsing, use a hose that is reinforced with a noncollapsible wall or braided wire construction. Keep pump as close as possible to the pumping liquid. Avoid hose bends and sharp turns. Pump performance is best when the pump is not far above the liquid level and the hose is kept straight.
OPERATION Discharge Hose Connection Use a commercially available hose, hose connector, and hose band. A short, large diameter hose will provide lower fluid friction and improve pump efficiency. A long or small diameter hose will increase fluid friction and reduces pump output. Never use a hose size smaller than the discharge port diameter. 1 NOTICE 1 If a discharge hose is used that has a smaller inside diameter than the port size, the pump case may be damaged.
OPERATION STARTING THE ENGINE 1. Turn the fuel valve to the ON position. 2. Move the choke lever to the CLOSED position. CHOKE LEVER I I \\ Do not use the choke if the engine is warm or the ambient temperature is high. 3. Turn the ignition switch to the ON position. 4. Move the throttle lever slightly to the left.
OPERATION 5. Pull the starter grip lightly until resistance is felt, then pull it briskly. 1 NOTICE 1 Return the starter grip slowly back to the engine to prevent damage to the starter. STARTER GRIP 6. As the engine warms up, gradually move the choke lever to the OPEN position. 7. Set the throttle at the desired speed to produce the best pumping conditions. The pump output can be controlled by adjusting the throttle lever to the desired position.
OPERATION STOPPING THE ENGINE Emergency To stop the engine in an emergency, turn the ignition switch to the OFF position. Normal 1. Move the throttle lever fully to the right to the IDLE position. THROTTLE LEVER \ \ 2. Turn the ignition switch to the OFF position. 3. Turn the fuel valve to the OFF position. 4. If the pump is not going to be used again for the rest of the day, or is going to be stored for a long period of time, refer to page 55 for procedures on properly storing your pump.
TRANSPORTING This chapter explains how to load and carry your pump safely. BEFORE LOADING LOADING .............................. AND UNLOADING. ......................
TRANSPORTING BEFORE LOADING When transporting the pump, be sure to keep it upright. If the pump is tilted or overturned, fuel may spill from the tank, which can result in a fire hazard. Allow the engine to cool before transporting the pump. 1. Turn the ignition switch to the OFF position. 2. Turn the fuel valve to the OFF position. 3. Drain the pump chamber (refer to page 43).
MAINTENANCE This chapter explains when and how to perform routine service, and adjustments for do-it-yourself maintenance. maintenance tasks should be done by your dealer. Your best equipped and staffed to provide the level of service you and your pump deserve. THE IMPORTANCE OF MAINTENANCE. inspection, More difficult dealer is and safety 30 ............. 31 31 MAINTENANCE SAFETY. ......................... Safety Precautions. ............................. MAINTENANCE SCHEDULE 32 ....................
MAINTENANCE THE IMPORTANCE OF MAINTENANCE Good maintenance is essential for safe, economical operation. It will also help reduce pollution. and trouble-free Improper maintenance, or failure to correct a problem before operation, can cause a malfunction in which you can be seriously hurt or killed. Always follow the inspection and maintenance recommendations and schedules in this owner’s manual.
MAINTENANCE 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 seriously hurt or killed. Always follow the procedures and precautions in this owner’s manual.
MAINTENANCE MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD (4) ITEM Perform at every indicated month or operating hour interval, whichever comes first. l Engine oil . Air Cleaner Check level 0 35 Change 0 Check 0 0 Clean I a1 1 Replace Sediment cup l 34 o*(l) 0 Clean r.lnan~Adi~ 1st I I Spark plug l II Spark arrester equipment) . . ,.(ootional .
MAINTENANCE FUEL Fuel tank capacity: 0.66 US gal (2.5 f) Refuel in a well-ventilated area with the engine stopped. If the engine has been running, allow it to cool. Refer to page 41 for fuel recommendations and page 67 for information about oxygenated fuels. Never refuel the pump inside a building where gasoline fumes may reach flames or sparks. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power tools, etc.
MAINTENANCE ENGINE MAINTENANCE Engine Oil Change Drain the oil while the engine is warm. Warm oil drains quickly and completely. 1. Remove the oil filler cap, drain bolt and sealing washer. Drain the oil into a suitable container. OIL FILLER CAP 2. Reinstall the drain bolt and sealing washer. Tighten the plug securely. pGiz/ Improper disposal of engine oil can be harmful to the environment. If you change you own oil, please dispose of the used oil properly.
4. Screw in the oil filler cap/dipstick securely. OIL FILLER/DIPSTICK CAP TOPOFOIL / FILLER NECK P Engine Oil Recommendations . Oil is a major factor affecting performance 4-stroke automotive detergent oil. AMBIENT and service life. Use TEMPERATURE SAE 1OW-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.
MAINTENANCE 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 often than specified in the MAINTENANCE SCHEDULE. 1 NOTICE 1 Operating the engine without an air filter, or with a damaged air filter, will allow dirt to enter the engine, causing rapid engine wear. This type of damage is not covered by the Distributor’s Limited Warranty. 1.
MAINTENANCE 4. Clean the filters. Paper element: Tap the element lightly several times on a hard surface to remove excess dirt, or blow compressed air [not exceeding 30 psi (207 kPa)] through the filter element from the inside out. Never try to brush the dirt off; brushing will force dirt into the paper fibers. Replace the paper element if it is excessively dirty or damaged.
MAINTENANCE Spark Plug Service Recommended 1 NOTICE spark plugs: NGK - BPRGES DENS0 - W20EPR-U 1 Spark plugs of the wrong size or incorrect heat range can cause engine damage. For good performance, free of deposits. the spark plug must be properly gapped and Allow the engine to cool before servicing the spark plug. 1. Disconnect the spark plug cap and remove any dirt from around the spark plug area. SPARK PLUG WRENCH 2. Use a 13/l 6 in (21 mm) spark plug wrench to remove the spark plug. 3.
MAINTENANCE 5. Check that the spark plug washer is in good condition, and thread the spark plug in by hand to prevent cross-threading. 6. After the spark plug is seated, tighten with a spark plug wrench to compress the washer. 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/8 - l/4 turn after the spark plug seats to compress the’washer. piEq A loose spark plug can overheat and damage the engine.
MAINTENANCE Carburetor Adjustment 1. Start the engine outdoors, and let it warm up to normal operating temperature. 2. Move the throttle lever to the slowest position. 3. Using a screwdriver, turn the throttle stop screw to obtain the standard idle speed. Stand:;: Idle Speed: 1,400 rpm -150 THROlTLE STOP SCREW Carburetor Modification for High Altitude Operation At high altitude, the standard carburetor air fuel mixture will be too rich.
MAINTENANCE Fuel Recommendations Use unleaded gasoline with a pump octane rating of 86 or higher. This engine is certified to operate on unleaded gasoline. Unleaded gasoline produces fewer engine and spark plug deposits and extends exhaust system life. Never use stale or contaminated gasoline or oil/gasoline Avoid getting dirt or water in the fuel tank. mixture. Occasionally you may hear light “spark knock” or “pinging” (metallic rapping noise) while operating under heavy loads.
MAINTENANCE Fuel Filter/Fuel Line 1. Turn the fuel valve to the OFF position. FUEL VALVE 2. Remove the carburetor drain screw and gasket. 3. Turn the fuel valve to the ON position and drain the fuel into a suitable container. Disconnect the fuel line at the carburetor. Remove the two 6 mm nuts and one 6 x 25 mm bolt securing the fuel tank. Remove the fuel tank. 4. Disconnect the fuel line, and unscrew the fuel filter from the DRAIN-SCREW tank. Inspect the fuel line and replace if cracked or worn. 5.
MAINTENANCE PUMP SERVICE Pump Chamber Flushing With the engine stopped, the pump case should be flushed after each use to prevent sediment from building up in the case. 1. Disconnect the suction and discharge hoses. 2. Insert a garden hose into the suction side of the pump. Turn on the water and thoroughly flush sediment out the discharge side. 3. After flushing, lift the suction side of the pump and allow water to drain out the discharge side.
MAINTENANCE Grease Pump Connecting Rod 1. Remove plastic access plug. 2. Disconnect spark plug cap and pull recoil starter until grease fitting is below access opening. 3. Wipe grease fitting clean to prevent dirt from getting into bearing. Using a manual grease gun, pump one or two strokes of NLGI #2 general purpose grease into bearing. 4. Reinstall access plug securely. Pump Gear Box Oil Change 1. Run engine for 10 minutes to warm up gear box oil. Warm oil drains quickly and completely.
MAINTENANCE Pump Clappet Valves 1. Disconnect spark plug cap from the spark plug, refer to page 38. 2. Turn the fuel valve lever to the off positon, refer to page 11. 3. Flush pump chamber, refer to page 43. 4. Lift suction side of pump and allow all water to drain out the discharge fitting. 5. Use a 19 mm wrench and remove the nuts and flat washers from both the suction and discharge ports, 6. Remove both ports. 7.
MAINTENANCE 9. Install the clappet valves over the studs. On the discharge side, the flat side of the valve should face the housing. On the suction side, the flat side of the valve should face the port. 10. Install both ports making sure all clappet valve tabs are positioned correctly. 11. Apply several drops of Hondalock 2 or equivalent thread lock to stud threads. Handtighten nuts then torque evenly to 20 ft-lb (27 N.m, 2.8 kg-m). 12.
MAINTENANCE Pump Diaphragm Disassembly 1. Disconnect spark plug cap from the spark plug, refer to page 38. 2. Drain the fuel tank, refer to page 42 for fuel tank draining. 3. Flush pump chamber, refer to page 43. 4. Lift suction side of pump and allow all water to drain out discharge fitting. I I 5. Remove hardware securing pump handle and springs. FLAT WASHER (4) LOCK WASHER (4) NUT (4) 6. Connect a hoist to the lifting bracket or have an assistant help lift pump off handle and onto a workbench.
MAINTENANCE 7. Remove connecting rod plastic cover. 8. Use a 17 mm wrench and remove the bolt securing the connecting rod to the crank arm. Wipe the rod surface clean and use a felt tip marker to mark the outside of the connecting rod for reassembly. WASH!1 TING 9. Pull the recoil starter to rotate the connecting position. rod to the down 10. Remove bolts and the lower pump case using a 19 mm wrench. Remove the connecting rod and diaphragm assembly.
MAINTENANCE 10. If the diaphragm is to be reused, mark diaphragm and diaphragm locking flanges. With a 19 mm wrench, remove the four nuts securing the connecting rod to the lower flange. Remove the diaphragm. For reassembly, note shoulder on top of diaphragm.
MAINTENANCE 1. Position diaphragm between connecting rod flange and lower flange then install nuts and washers. Note diaphragm shoulder on top. See page 49 for tightening torque. DIAPI iRAGM vi 1, /k:E6RE 2. Apply NLGI #2 general purpose grease to connecting rod bearing. 3. Rotate crank arm to bottom by pulling the recoil starter. Install diaphragm and connecting rod into pump case then install connecting rod with mark made during disassembly facing out. 4.
MAINTENANCE 5. Pull recoil starter slowly until diaphragm pulls up against upper case stops. DIAPHRAGM Crank arm should be approximately at the angle shown below. CRANK ARM 6. Install lower case making sure the diaphragm is centered and not pinched between the case stops. Tighten hardware following torque procedure on page 49. 7. If removed, install clappet valves. Refer to page 45. 8. Install pump handle and springs. 9. Check gear box oil level and fill if necessary. Refer to page 44. 1O.
TROUBLESHOOTING This chapter tells you what to check for if you encounter problems with your pump. ENGINE WILL NOT START. . . . . . . . . . . . . . . . . . . . . . . . 54 Fuel......................................... 54 Sparkplug..................................... 54 PUMP WILL NOT PUMP. . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING ENGINE WILL NOT START Fuel 1. Is there enough fuel in the fuel tank? (page 33). 2. Is the fuel valve ON? 3. Is the choke lever in the closed position for cold engine or open position for a warm engine? 4. Is fuel reaching the carburetor? To check, place a suitable container under the float bowl and remove the drain screw. Turn fuel valve ON. Fuel should flow out freely. Spark Plug 1. Is the ignition switch ON? (page 12). 2. Make sure the oil level is correct (page 35). 3.
STORAGE This chapter tells you how to protect your pump, and ensure that it will start easily when you want to use it again. STORAGE PREPARATION ........................ Cleaning ...................................... Engine ..................................... Pump ...................................... Fuel ......................................... Adding fuel stabilizer to extend fuel storage life. ..... Draining the Fuel Tank and Carburetor. ........... EngineOil ....................................
STORAGE STORAGE PREPARATION 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 Engine Wash the engine by hand, and be careful to prevent water from entering the air cleaner or muffler. 1 NOTICE l l 1 Using a garden hose or pressure washing equipment can force water into the air cleaner.
STORAGE Fuel Gasoline will oxidize and deteriorate in storage. Old gasoline will cause hard starting, and it leaves gum deposits that clog the fuel system. If the gasoline in your pump’s engine deteriorates during storage, you may need to have the carburetor and other fuel system components serviced or replaced.
STORAGE Draining the Fuel Tank and Carburetor ’ 1. Remove the carburetor drain screw with a 10 mm wrench or screwdriver, and drain the fuel system into an approved gasoline container. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. l Stop the engine and keep heat, sparks, and flame away. l Handle fuel only outdoors. l Wipe up spills immediately. 2. Turn the fuel valve to the ON position.
STORAGE Air Cleaner Check the air filter and clean as necessary (see page 36). Engine Cylinder 1. Remove the spark plug (see page 38). Pour a tablespoon (5 - 10 cc) of clean engine oil into the cylinder. Slowly pull the recoil starter rope a few times to distribute the oil in the cylinder. Reinstall the spark plug. 2. Pull the starter rope slowly until resistance is felt. Continue pulling slowly until the arrow notch on the starter pulley aligns with the hole on the recoil starter.
STORAGE PLACING IN STORAGE If your pump will be stored with gasoline in the fuel tank and carburetor, it is important to reduce the hazard of gasoline vapor ignition. Select a well ventilated storage area away from any appliance that operates with a flame, such as a furnace, water heater, or clothes dryer. Also avoid any area with a spark producing electric motor, or where power tools are operated. If possible, avoid storage areas with high humidity, because that promotes rust and corrosion.
SPECIFICATIONS This chapter gives you dimensions, capacities, and other technical information. DIMENSIONS AND WEIGHT ....................... ENGINE DESIGN AND PERFORMANCE ............. 62 S? PUMP ......................................... 62 GEAR BOX ........ 62 MAINTENANCE ............................. ................................. TUNEUP ....................................... PUMP PERFORMANCE WIRING DIAGRAM. CURVE .................... ... ...........................
SPECIFICATIONS DIMENSIONS Model Description AND WEIGHT WDP20X WDP30X WZBZ WZCA 32.5 x 23.4 x 25.0 in (826 x 594 x 635 mm) 120 Ibs (54.4 kg) code Length x Width x Height Dry Weight ENGINE DESIGN AND PERFORMANCE Model Engine type Displacement [bore x stroke] Maximum output Cooling system Ignition system PTO shaft direction . GX120Kl QX2 4-stroke, overhead-valve, single cylinder 7.2 cu in (119 cc) [2.4 x 1.7 in (60 x 42 mm)] 4.0 hp (2.
SPECIFICATIONS MAINTENANCE Fuel Unleaded gasoline with a pump octane rating of 86 or higher See page 41 Engine oil SAE IOW-30, API SH or SJ See page 35 Gear box oil SAE 8OW/90 GL5 gear oil See page 44 Spark plug type NGK - BPRGES DENS0 - W20EPR-U See page 38 Maximum governed speed 3,000 - 3,150 rpm See shop manual. Spark Plug Gap 0.028 - 0.031 in (0.70 - 0.80 mm) See page 38. Carburetor 1,400 +200 -150 See page 40.
SPECIFICATIONS PUMP PERFORMANCE .CURVE * This graph shows the relationship between the pump discharge capacity and the total dynamic head. As you increase the total head, the discharge capacity will decrease. J 0 10 20 30 40 50 60 70 60 Discharge Capacity (gpm) * Based on clear water at sea level. WIRING.
ADDITIONAL INFORMATION This chapter contains additional information, Honda publications available to you, and tells you how to contact us if you have a question or a warranty repair problem. 66 66 66 HONDA PUBLICATIONS .......................... ShopManual .................................. Par&Catalog .................................. WARRANTY SERVICE INFORMATION. OXYGENATED 66 .............. 67 FUELS ............................ 68 68 68 68 68 69 69 EMISSION CONTROL SYSTEM INFORMATION .......
ADDITIONAL INFORMATION HONDA PUBLICATIONS These publications will give you additional information about maintaining your pump. You may order them from your Honda water pump dealer. Shop Manual This manual covers complete maintenance and overhaul procedures. It is intended to be used by a skilled technician. Parts Catalog This provides a complete pictorial parts listing. WARRANTY SERVICE INFORMATION Honda power equipment dealership personnel are trained professionals.
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.
ADDITIONAL 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. If you use an oxygenated fuel, be sure it is unleaded and meets the minimum octane rating requirements. Before using an oxygenated fuel, try to confirm the fuel’s contents.
ADDITIONAL EMISSION INFORMATION 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.
ADDITIONAL INFORMATION Replacement Parts The emission control systems on your new Honda engine were designed, built, and certified to conform with EPA and California emission regulations. We recommend the use of genuine Honda parts whenever you have maintenance done. These original-design replacement parts are manufactured to the same standards as the original parts, so you can be confident of their performance.
ADDITIONAL INFORMATION SPARK ARRESTER SERVICE (optional equipment) The spark arrester must be serviced every 100 hours to keep it functioning as designed. 1. Allow the engine to cool, the remove the two 8 mm nuts and remove the muffler from the cylinder head. 2. Remove the four 5 mm screws from the muffler protector and remove the muffler protector. 3. Remove the 4 mm screw from the spark arrester and remove the spark arrester from the muffler. SCREW, 5 mm (4) MUFFLER PROTECTOR -AZ NUTS, 8 mm (2) c 4.
INDEX A Air Cleaner: Clean ................................ Inspect.. ............................ H .37 .36 I C Ignition Switch . .. . .. . .. . . .. . . .. . . .. .. 12 Carburetor: Idle Speed Adjustment.. .... .40 High Altitude Operation......4 0 Choke Lever.. ....................... ,l 1 Component Identification.. ..... 10 L Liquid Pumping Recommendations . .. . . .. . . .. . . 6 M D Description of Controls .......... 11 Discharge Hose Connection.. 22 Maintenance Maintenance Safety . .. . . ..
INDEX S Safety: Important Safety Information.. ..................... 6 Maintenance ..................... .31 Safety Label Locations.. ..... 8 Safety Message Definitions 2 Serial Numbers ..................... .10 Spark Arrester Service.. ........ .70 Spark Plug Service ............... .38 Specifications.. ...................... .61 Starting the Engine ............... .23 Stopping the Engine ............. .25 Emergency ....................... ..2 5 Normal ............................. ..
QUICK REFERENCE INFORMATION Fuel Engine Oil Spark Plug Carburetor Maintenance Type Unleaded gasoline with pump octane rating of 86 or higher (page 41). Capacity 0.66 US gallons (2.5 !) Type SAE 1OW-30, API SH or SJ (page 35) Capacity 0.6 US quarts (0.6 !) Type Resistor: NGK - BPRGES DENS0 - W20EPR-U Gap 0.028 - 0.031 in (0.70 - 0.80 mm) (page 38) Idle speed 1,400 Zo” rpm (page 40) Before each use Check Check Check Check rG:f Change engine oil (page 34).