00X31-YB7-7220 WH15X/WH20X Black Owner’s Manual WATER PUMP WH15X/WH20X 31YB7722 00X31-YB7-7220 N 2eY1800.2009.04 " Printed in Japan o2011 Honda Motor Co., Ltd.
11/10/26 10:36:24 31YB7730_001 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. The information and specifications included in this publication were in effect at the time of approval for printing. Honda Motor Co., Ltd.
11/10/26 10:36:30 31YB7730_002 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. 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 symbol.
11/10/26 10:36:42 31YB7730_003 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. This information alerts you to potential hazards that could hurt you or others.
11/10/27 16:21:18 31YB7730_004 CONTENTS PUMP SAFETY ........................................................................................... 5 IMPORTANT SAFETY INFORMATION ................................................. 5 SAFETY LABEL LOCATIONS ................................................................. 7 CONTROLS ................................................................................................. 8 COMPONENT & CONTROL LOCATIONS .............................................
11/10/26 10:36:51 31YB7730_005 CONTENTS SERVICING YOUR PUMP (continued) AIR FILTER INSPECTION ..................................................................... 33 AIR FILTER CLEANING ........................................................................ 34 SPARK PLUG SERVICE ........................................................................ 35 IDLE SPEED ADJUSTMENT ................................................................ 37 SPARK ARRESTER SERVICE (optional equipment) ...................
11/10/26 10:37:00 31YB7730_006 PUMP SAFETY IMPORTANT SAFETY INFORMATION Honda WH15X and WH20X 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. The most common hazards are discussed below, along with the best way to protect yourself and others.
11/10/26 10:37:07 31YB7730_007 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.
11/10/26 10:37:28 31YB7730_008 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.
11/10/26 10:37:34 31YB7730_009 CONTROLS COMPONENT & CONTROL LOCATIONS ＜WH20X＞ CARRYING HANDLE MUFFLER FUEL FILLER CAP AIR CLEANER THROTTLE LEVER FUEL VALVE LEVER CHOKE LEVER STARTER GRIP OIL DRAIN PLUG PRIMING WATER FILLER CAP DISCHARGE PORT IGNITION SWITCH SUCTION PORT OIL FILLER CAP/DIPSTICK STRAINER PUMP DRAIN PLUG 8
/10/26 10:37:46 31YB7730_010 CONTROLS CONTROLS Fuel Valve Lever The fuel valve opens and closes the connection between the fuel tank and the carburetor. FUEL VALVE LEVER 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 OFF position to prevent carburetor flooding and to reduce the possibility of fuel leakage. ON OFF Ignition Switch IGNITION SWITCH The ignition switch controls the ignition system.
11/10/26 10:37:57 31YB7730_011 CONTROLS Choke Lever CHOKE LEVER The choke lever opens and closes 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. CLOSED OPEN Throttle Lever The throttle lever controls engine speed. Moving the throttle lever in the directions shown makes the engine run faster or slower.
11/10/26 10:38:04 31YB7730_012 CONTROLS Recoil Starter Grip Pulling the starter grip operates the recoil starter to crank the engine for starting.
11/10/26 10:38:11 31YB7730_013 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. Know what to do in case of emergencies. Be sure of what you are pumping.
11/10/26 10:38:20 31YB7730_014 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.
11/10/26 10:38:31 31YB7730_015 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 17 ). Check that the hose connectors and clamps are securely installed (see pages 17 and 18 ).
11/10/26 10:38:39 31YB7730_016 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 5 and the chapter titled BEFORE OPERATION. For your safety, avoid starting or operating the engine in an enclosed area, such as a garage.
11/10/26 10:38:46 31YB7730_017 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.
11/10/26 10:38:58 31YB7730_018 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. The suction hose should be no longer than necessary. Pump performance is best when the pump is near the water level and the hoses are short.
11/10/26 10:39:05 31YB7730_019 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. Tighten the hose clamp securely to prevent the discharge hose from disconnecting under high pressure.
11/10/26 10:39:12 31YB7730_020 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.
11/10/26 10:39:24 31YB7730_021 OPERATION STARTING THE ENGINE 1. Prime the pump (see page 19 ). 2. Move the fuel valve lever to the ON position. FUEL VALVE LEVER ON 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 CLOSED 4. Move the throttle lever away from the SLOW position about 1/3 of the way toward the FAST position.
11/10/26 10:39:32 31YB7730_022 OPERATION 5. Turn the ignition switch to the ON position. IGNITION SWITCH ON 6. Pull the starter grip lightly until you feel resistance, and then pull briskly in the direction of the arrow as shown below. Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter.
11/10/26 10:39:41 31YB7730_023 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 up. 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. Pump output is controlled by adjusting engine speed.
11/10/26 10:39:49 31YB7730_024 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. THROTTLE LEVER SLOW 2. Turn the ignition switch to the OFF position.
11/10/26 10:39:56 31YB7730_025 OPERATION 3. Turn the fuel valve lever to the OFF position. OFF FUEL VALVE LEVER After use, remove the pump drain plug (see page 40 ), 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.
11/10/26 10:40:05 31YB7730_026 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. Always follow the inspection and maintenance recommendations and schedules in this owner’s manual.
11/10/26 10:40:14 31YB7730_027 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 seriously hurt or killed. Always follow the procedures and precautions in the owner’s manual.
11/10/26 10:40:26 31YB7730_028 SERVICING YOUR PUMP MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD (3) ITEM Perform at every indicated month or operating hour interval, whichever comes first.
11/10/26 10:40:34 31YB7730_029 SERVICING YOUR PUMP REFUELING 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. You can be burned or seriously injured when handling fuel. Stop the engine and keep heat, sparks, and flame away. Handle fuel only outdoors. Wipe up spills immediately.
11/10/26 10:40:46 31YB7730_030 SERVICING YOUR PUMP Refuel in a well-ventilated area before starting the engine. If the engine has been running, allow it to cool. Refuel carefully to avoid spilling fuel. Do not fill the fuel tank completely. Fill tank to approximately 1 inch (25 mm) below the top of the fuel tank to allow for fuel expansion. If may be necessary to lower the fuel level depending on operating conditions. After refueling, tighten the fuel tank cap securely.
11/10/26 10:40:56 31YB7730_031 SERVICING YOUR PUMP ENGINE OIL LEVEL CHECK Check the engine oil level with the engine stopped and in a 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. 3. If the oil level is low, fill to the edge of the oil filler hole with the recommended oil (see page 32 ). 4. Screw in the oil filler cap/dipstick securely.
11/10/26 10:41:08 31YB7730_032 SERVICING YOUR PUMP ENGINE OIL CHANGE Drain the used oil while the engine is warm. Warm oil drains quickly and completely. Do not run the pump without priming water. Dry operation will burn the seal. 1. 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. 2.
11/10/26 10:41:15 31YB7730_033 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). AMBIENT TEMPERATURE SAE 10W-30 is recommended for general use.
11/10/26 10:41:21 31YB7730_034 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 it is damaged. Reinstall the air filter and air cleaner cover. Be sure all the parts shown below are in place. Tighten the wing nut securely.
11/10/26 10:41:28 31YB7730_035 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. Clean the air filter in warm soapy water, rinse, and allow to dry thoroughly. Or clean in nonflammable solvent and allow to dry. 2.
11/10/26 10:41:38 31YB7730_036 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) W20EPR-U (DENSO) Incorrect spark plugs can cause engine damage. For good performance, the spark plug must be properly gapped and free of deposits. 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. 2.
11/10/26 10:41:49 31YB7730_037 SERVICING YOUR PUMP 3. Inspect the spark plug. Replace it if the electrodes are worn, or if the insulator is cracked or chipped. 0.028−0.031 in (0.70−0.80 mm) 4. Measure the spark plug electrode gap with a suitable gauge. Correct the gap, if necessary, by care f ul ly b end ing the s ide electrode. The gap should be: 0.028−0.031 in (0.70−0.80 mm) 5. Install the spark plug carefully, by hand, to avoid cross-threading. 6.
11/10/26 10:41:56 31YB7730_038 SERVICING YOUR PUMP IDLE SPEED ADJUSTMENT 1. Start the engine outdoors, and allow it 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. Turn the throttle stop screw to obtain the standard idle speed.
11/10/26 10:42:07 31YB7730_039 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. The spark arrester must be serviced every 100 hours to keep it functioning as designed. If the engine has been running, the muffler will be very hot.
11/10/26 10:42:17 31YB7730_040 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. Cleaning 1. Wash the engine and pump. Wash the engine by hand, and be careful to prevent water from entering the air cleaner or muffler opening.
11/10/26 10:42:27 31YB7730_041 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, and then reinstall the drain plug. 6. After the pump is clean and dry, touch up any damaged paint, and coat areas that may rust with a light film of oil. Lubricate controls with a silicone spray lubricant.
11/10/26 10:42:37 31YB7730_042 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: 1. Add fuel stabilizer following the manufacturer’s instructions. When adding a fuel stabilizer, fill the fuel tank with fresh gasoline. If only partially filled, air in the tank will promote fuel deterioration during storage.
11/10/26 10:42:48 31YB7730_043 STORAGE Long Term or Seasonal Storage (greater than 90 days) 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 then move the fuel valve lever to the ON position. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. Keep heat, sparks, and flame away. Handle fuel only outdoors.
11/10/26 10:43:00 31YB7730_044 STORAGE Engine Oil Change the engine oil (see page 31 ). Engine Cylinder 1. Remove the spark plug (see page 35 ). 2. Pour a teaspoon (5 cc) of clean engine oil into the cylinder. 3. Pull the starter grip several times to distribute the oil in the cylinder. 4. Reinstall the spark plug. 5. Pull the starter grip slowly until resistance is felt and the notch on the starter pulley aligns with the hole at the top of the recoil starter cover.
11/10/26 10:43:07 31YB7730_045 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. Do not use sheet plastic as a dust cover. A nonporous cover will trap moisture around the pump, promoting rust and corrosion. REMOVAL FROM STORAGE Check your pump as described in the BEFORE OPERATION chapter of this manual.
11/10/26 10:43:11 31YB7730_046 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. Move the fuel valve lever to the OFF position.
11/10/26 10:43:21 31YB7730_047 TAKING CARE OF UNEXPECTED PROBLEMS ENGINE Engine Will Not Start Possible Cause Fuel valve OFF. Choke open. Ignition switch OFF. Out of fuel. Bad fuel; pump stored without treating or draining gasoline, or refueled with bad gasoline. Spark plug faulty, fouled, or improperly gapped. Spark plug wet with fuel (flooded engine). Fuel filter clogged, carburetor malfunction, ignition malfunction, valves stuck, etc. Engine Lacks Power Possible Cause Air filter clogged.
11/10/26 10:43:32 31YB7730_048 TAKING CARE OF UNEXPECTED PROBLEMS PUMP No Pump Output Possible Cause Pump not primed. Hose collapsed, cut, or punctured. Strainer not completely underwater. Air leak at connector. Strainer clogged. Excessive head. Engine lacks power. Low Pump Output Possible Cause Hose collapsed, damaged, too long, or diameter too small. Air leak at connector. Strainer clogged. Hose damaged, too long, or diameter too small. Marginal head. Engine lacks power. Correction Prime pump (p.
11/10/26 10:43:39 31YB7730_049 TECHNICAL INFORMATION Serial Number Location ＜WH20X＞ ENGINE SERIAL NUMBER Record the engine serial number in the space below. You will need this serial number when ordering parts, and when making technical or warranty inquiries (see page 58 ).
11/10/26 10:43:45 31YB7730_050 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.
11/10/26 10:43:55 31YB7730_051 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.
11/10/26 10:44:02 31YB7730_052 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.
11/10/26 10:44:10 31YB7730_053 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. The lower the Air Index, the less pollution.
11/10/26 10:44:23 31YB7730_054 TECHNICAL INFORMATION Specifications WH15X Dimensions and weight Length Width Height Dry mass [weight] 16.3 in (415 mm) 14.2 in (360 mm) 15.9 in (405 mm) 49 lbs (22 kg) Engine Model Engine type Displacement [bore × stroke] Cooling system Ignition system PTO shaft rotation GX120 4-stroke, overhead valve, single cylinder 7.2 cu-in (118 cm ) [2.36 × 1.65 in (60.0 × 42.
11/10/27 16:21:24 31YB7730_055 TECHNICAL INFORMATION WH15X (continued) Pump Suction port diameter Discharge port diameter Total head (maximum) Suction head (maximum) Discharge pressure Discharge capacity (maximum) Self-priming time ＊1: Based on ANSI/HI 1.6 ＊2: Based on JIS B 8301 8.1.2 54 1.6 in (40 mm) 1.6 in (40 mm) 127 ft (39 m)＊1 26.2 ft (8 m) 55 psi (379 kPa)＊1 105.7 US gal (400 L) per minute＊2 80 seconds at 16.
11/10/26 10:44:44 31YB7730_056 TECHNICAL INFORMATION WH20X Dimensions and weight Length Width Height Dry mass [weight] 16.7 in (425 mm) 14.8 in (375 mm) 15.9 in (405 mm) 51.8 lbs (23.5 kg) Engine design and performance Model Engine type Displacement [bore × stroke] Cooling system Ignition system PTO shaft rotation GX160 4-stroke, overhead valve, single cylinder 9.9 cu-in (163 cm ) [2.68 × 1.77 in (68.0 × 45.
11/10/27 16:21:31 31YB7730_057 TECHNICAL INFORMATION WH20X (continued) Pump Suction port diameter Discharge port diameter Total head (maximum) Suction head (maximum) Discharge pressure Discharge capacity (maximum) Self-priming time ＊1: Based on ANSI/HI 1.6 ＊2: Based on JIS B 8301 8.1.2 56 2 in (50 mm) 2 in (50 mm) 141 ft (43 m)＊1 26.2 ft (8 m) 61 psi (421 kPa)＊1 132.1 US gal (500 L) per minute＊2 80 seconds at 16.
11/10/26 10:44:58 31YB7730_058 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. at 1 888292-5395 or visit www.hondapowerequipment.
11/10/26 10:45:06 31YB7730_059 CONSUMER INFORMATION Customer Service Information Servicing 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.
11/10/26 10:45:08 31YB7730_060 MEMO 59
11/10/26 10:45:10 31YB7730_061 MEMO 60
11/10/27 16:21:38 31YB7730_062 QUICK REFERENCE INFORMATION Type Fuel Capacity Type Engine Oil Capacity Type Spark Plug Gap Maintenance Before each use First 20 hours Subsequent Unleaded gasoline with a pump octane rating of 86 or higher (page 29 ) WH15X: 0.53 US gal (2.0 L) WH20X: 0.82 US gal (3.1 L) SAE 10W-30, API SJ or later (or equivalent) for general use (page 32 ) WH15X: 0.59 US qt (0.56 L) WH20X: 0.61 US qt (0.58 L) NGK: BPR6ES DENSO: W20EPR-U 0.028−0.031 in (0.70−0.
00X31-YB7-7220 WH15X/WH20X Black Owner’s Manual WATER PUMP WH15X/WH20X 31YB7730 00X31-YB7-7300 N 2eY13000.2012.01 " Printed in Japan o2001-2009 Honda Motor Co., Ltd.
