Honda Power Equipment WH20X manual

31YB7722 00X31-YB7-7220 o 2 011 Honda Motor Co., Ltd. -All Rights Reserved Owner’ s Manual WA TER PUMP WH15X/ WH20X Black DIC F101 N 2eY 1 800.2009.04 " Printed in Japan 00X31-YB7-7220 WH15X/WH20X[...]

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 specifi cations included in this pub lication were in effect at the time of approval fo r printing. Honda Motor Co., Ltd. reserves the right,[...]

1 INTRODUCT ION Congratulations on your selection of a Honda water pump. We are certain you will be pleased with your purchase o f one of the f inest water pumps on the market. We want to help you get the be st results from your new water pump and to operate it safely. Th is manual contains the info rmation on how to do that; please read it careful[...]

2 INTRODUCTION A FEW WORDS ABOUT SAFETY Safety Labels Safety Messages Safety Headings Safety Section Instructio ns 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 [...]

3 CON TENTS .......................................................................................... PUMP SAFETY . 5 ................................................................................................ CONTROLS . 8 ............................................................................. BEFORE OPERATION . 12 .....................[...]

4 CONTENTS SERVICING YOUR PUMP (continued) ................................................................................................ STORAGE . 39 ..................................................................................... TRANSPORTING . 45 ..................................... TAKING CARE OF UNEXPECTED PROBLEMS . 46 ...............[...]

5 IMPORTANT SAFETY INFORMATION Refuel With Care Pump Operati on Operator Responsibility PUMP SAFETY 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 t he pump and other property. Most injuries or pr operty damage can be prevented [...]

6 PUMP SAFETY Hot Exhaust Carbon Monoxide Hazard The muffler becomes very hot during operation and rem ains 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[...]

7 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 co mes off or beco mes hard to read, contact an authorized Honda servicing dealer for a replacem ent. 11/10/26 10:37:28 31YB7730_008[...]

＜＞ 8 COMPONENT & CONTROL LOCATIONS WH20X CONTROLS IGNITION SWITCH MUFFLER OIL FILLER CAP/DIPST ICK PUMP DRAIN PLUG OIL DRAIN PLUG AIR CLEANER THROTTLE LEVER CHOKE LEVER STARTER GRIP FUEL VALVE LEVER PRIMING WATER FILLE R CAP DISCHARGE PORT SUCTION PORT FUEL FILLER CAP CARRYING HANDLE STRAINER 11/10/26 10:37:34 31YB7730_009[...]

9 CONTROLS CONTROLS Fuel Valve Lever Ignition Switch FUEL VALVE LEVER OFF ON ON O O F F F F IGNITION SWITCH The fuel valve opens and closes the connection 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 OFF positio n to [...]

10 CONTROLS Choke Lever Throttle Lever C C L L O O S S E E D D OPEN FAST SLOW CHOKE LEVER THROTTLE LEVER The choke lever opens and closes the choke valve in the carburetor. The CLOSED pos ition enriche s the fuel mixture for starting a cold engine. The OPEN position provides the correct fuel mixture for operation after starting, and for restarting [...]

11 CONTROLS Recoil Starte r Grip STARTER GRIP Pulling the starter grip op erates the rec oil starter to crank th e engine for starting. 11/10/26 10:38:04 31YB7730_012[...]

12 BEFORE OPERAT ION ARE YOU READY TO GET STARTED? Knowledge Your safety is your responsibility. A little time spent in preparation will significantly reduce your risk of injury. Read and understand this manual. Know what the controls do and how to operate them. Familiarize yourself with the pump and its operation be fore you begin pumping. Know wh[...]

13 BEFORE OPERATION IS YOUR PUMP READY TO GO? Check the General Condition of the Pump For your safety, and to maximize the service life of your equipment, it is very important to take a few m oments before you operate the pump to check its condition. Be sure to take care of any problem you find, or have your servicing dealer corr ect it, before you[...]

14 BEFORE OPERATION Check the Suction and Dischar ge Hoses Check the Engine Check the general conditi on of the hoses. Be s ure the hoses are in serviceable condition before connectin g 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 connect[...]

15 SAFE OPERATING PRECAUTIONS OPERA TION To safely realize the full potential of this pump, you need a complete understanding of its op eration and a c ertain amount of practice with its controls. Before opera ting the pump for the first time, please review the IMPORTANT SAFETY INFORMATION on page and the chapter titled BEFORE OPERATION . For your [...]

16 OPERATION PUMP PLACEMENT T T O O T T A A L L H H E E A A D D DISCHARGE HEAD SUCTION HEAD LESS THAN 26 feet (8 meters) For best pump performance, place the pump near the water level, and use hoses that are no longer than necessary. That w ill enable the pump to produce the greatest output with the least self-priming time. As head (pumping height)[...]

17 OPERATION SUCTION HOSE INSTALLATION HOSE CONNECTOR HOSE CLAMP SUCTION PORT HOSE CLAMP HOSE CLAMP STRAINER HOSE CLAMP RING (commercially available) HOSE CONNECTOR (commercially available) SUCTION HOSE (commercially available) HOSE COUPLER SEALING WASHER SUCTION HOSE Use a commercially available hose and hose connector with the hose clamp provided[...]

18 OPERATION DISCHARGE HOSE INSTALLATION HOSE CLAMP DISCHARGE HOSE (commercially available) HOSE CONNECTOR (commercially available) Use a commercially available hose and ho se connector and clamp provided with the pump (if necessary). It is best to use a short, large-d iameter hose, because that will reduce fluid friction and improve pump output. A[...]

19 OPERATION PRIMING THE PUMP PRIMING WATER FILLE R CAP BOARDS DISCHARGE HOSE 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 pum p seal. If the pump has been operated dry, stop the engi[...]

20 OPERATION STARTING THE ENGINE ON CHOKE LEVER CLOSED THROTTLE LEVER F F U U E E L L V V A A L L V V E E L L E E V V E E R R Move the throttle lever away from the S LOW position about 1/ 3 of the way toward the FAST position. Move the fuel valve lever to the ON position. Prime the pump ( see page ). To re start a warm en gine, leave the c hoke l e[...]

21 OPERATION ON STARTER GRIP IGNITION SWITCH D i r e c t i o nt op u l l Turn the ignition switch to the ON position. Do not allow the starter gr ip to snap back against the engine. Return it gently to prevent damage to t he starter. Pull the starter grip lightly until you f eel resistance, and the n pull briskly in the direction of the arrow as sh[...]

22 OPERATION SETTING ENGINE SPEED OPEN CHOKE LEVER FAST SLOW THROTTLE LEVER If the choke lever was moved to the CLOSED position to start the engine, gradually move it to the OPEN pos ition as the engine w arms up. After starting the engine, move the throttle lever to the FAST position for self-priming, and check pump output. Pump output is controll[...]

23 OPERATION STOPPING THE ENGINE THROTTLE LEVER SLOW IGNITION SWITCH O O F F F F To stop the engine in an emergency, simply turn the ignition switch to the OFF position. Under normal condi tions, use the foll owing procedure. Move the throttle lever to the SLOW position. Turn the ignition switch to the OFF position. 1. 2. 11/10/26 10:39:49 31YB7730[...]

24 OPERATION FUEL VALVE LEVER OFF Turn the fuel valve lever to the OFF position. After use, remove the pump dr ain plug (see page ), and drain the pump chamber. Remove the filler cap, and flush the pump chamber with clean, fre sh water. Allow the water t o drain from the pump chamber, and then reinstall the filler cap and drain plug. 3. 40 11/10/26[...]

25 SERVICING YOUR P UMP THE IMPORTANCE OF MAINTENANCE Maintenance, replacement, or repair of emission control devices and systems may be performed by any engine repair establishment or individual, using parts that ar e ‘‘certified’’ to EPA st andards. Good maintenance is essential for saf e, economical, and trouble-free operation. It will a[...]

− − − 26 SERVICING YOUR PUMP MAINTENANCE SAFETY Safety Precautions Carbon monoxide poisoning from engine exhaust . Burns from h ot parts. Injury from moving part s. Some of the most important safety precautions follow. However, w e cannot warn you of every conceivable hazard that can ar ise in performing maintenance. Only you can decide wheth[...]

○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 27 SERVICING YOUR PUMP MAINTENANCE SCHEDULE ITEM Perform at every indicate d month or operating hour interval, whichever comes first. REGULAR SERVICE PERIOD (3) Engine oil Air filter Spark plug Spark arrester (applicable types) Idle speed Valve clearance Combustion chamb er Fuel tank and filte[...]

28 SERVICING YOUR PUMP REFUELING MAXIMUM FUEL LEVEL FUEL TANK TOP 1i n c h (25 mm) With the engine stopped , remove the fuel tank c ap and check the f uel 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. Wipe up spills immediately. Handle fuel onl[...]

29 SERVICING YOUR PUMP FUEL RECOMMENDATIONS Refuel in a well-ventilated area before starting the engine. If the engine has been runnin g, allow it to cool. Refuel ca refull y to avoid spilling fuel. Do not fill the fuel tank completely. Fill tan k to approximately 1 inch (25 mm) below the top o f the fu el tank to all ow for fu el expansion. If may[...]

30 SERVICING YOUR PUMP ENGINE OIL LEVEL CHECK OIL FILLER NECK OIL FILLER CAP/DIPST ICK UPPER LIMIT Check the engine oil level with the engine stopped and in a level position. Remove the oil filler cap/ dipstick and wipe it clean. Inse rt and remove the dips tick witho ut screwing it int o the filler neck . Check the oil level shown on the dipstick.[...]

31 SERVICING YOUR PUMP ENGINE OIL CHANGE OIL LEVEL OIL FILLER CAP/DIPST ICK DRAIN PLUG 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. Drain the used oil while the engine is warm. Warm oil drains quickly and completely. Do not run the pump without primin[...]

32 SERVICING YOUR PUMP ENGINE OIL RECOMMENDATION AMBIENT TEMPERATUR E Oil is a major factor affecting performance and service li fe. Use 4-stroke automotive detergent oil. Use 4-stroke motor oil t hat meets or exceeds the requirements f or API service category SJ or later (or equivalent). Always check the API service label on the oil container to b[...]

33 SERVICING YOUR PUMP AIR FILTER INSPECTION AIR CLEANER COVER AIR FILTER WING NUT COVER WASHER GRID Unscrew the wing nut and r emove the air cleaner cover . Check the air filter to be sure it is clean and in good condition. If the air filter is dirty, cl ean it as described on page . Replace the air filter if it is damaged. Reinstall the air filte[...]

34 SERVICING YOUR PUMP AIR FILTER CLEANING AIR FILTER 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 freque ntly than specif ied in the Maintenance Schedule (see page ). Clean the air filter in warm soapy w ater, rinse, and allow to dr [...]

35 SERVICING YOUR PUMP SPARK PLUG SERVICE SPARK PLUG CAP SPARK PLUG WRENCH In or der to se rvice t he spark plu g, you wi ll need a spa rk plug w rench (commercially available). Incorrect spar k plugs can cause engine damage. BPR6ES W20EPR-U For good performance, the spark plug must be properly gapped and free of deposits. Allow the engine to cool [...]

−− − − − 36 SERVICING YOUR PUMP 0.028 0.031 in (0.70 0.80 mm) Inspect the spark plug. Replace it if the elec trodes are worn , or if the insulator is cracked or chipped. Measure t he spark plug electrode gap with a suitable gauge. Correct the gap, if necessary, by c a r e f u l l yb e n d i n gt h es i d e electrode. The gap should be: 0.[...]

＋ − 37 SERVICING YOUR PUMP IDLE SPEED ADJUSTMENT THROTTLE ST OP SCREW 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. Move the throttle lever to its slowest position. Turn the throttle stop screw to obt[...]

38 SERVICING YOUR PUMP SPARK ARRESTER SERVICE (optional equipment) 8 mm NUTS MUFFLER MUFFLER PROTECTOR SPARK ARRESTER SCRE EN 5 mm SELF-TAPPING SCREWS SPARK ARRESTER 4 mm SCREW Your engine is not factory-equipped with a spark arrester. In some areas, it is illegal to o perate a n engine without a spark a rrester. Check local laws and regulations. A[...]

39 STORAGE STORAGE PREPARATION Cleaning Proper storage preparation i s essential for keeping your pump trouble- free and looking good. The f ollowing 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. Wash the engine and pump. Wash th[...]

40 STORAGE Fuel PUMP DRAIN PLUG The Distributor’s Limited Warranty does not cover fuel system damage or engine performance problems resulting from neglected storage preparation. 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 c hambe r, and th en[...]

− − 41 STORAGE Adding a Fuel Stabilizer to Extend Fuel Storage Life Short Term Storage (30 90 days) FUEL VALVE LEVER OFF Add fuel stabilizer following the manufacturer’s instruc tions. If your equipment will not be used f or 30 90 days, we recommend the following to prevent fuel-related problems: When adding a fuel s tabilizer, fill the fuel [...]

42 STORAGE Draining the Fuel Tank and Carburet or Long Term or Seasonal Storage (greater t han 90 days) DRAIN BOLT Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. Wipe up spills immediately. Handle fuel only outdoors. Keep heat, sparks, and flame away. Place an approved gasoline container below[...]

43 STORAGE Engine Oil STORAGE PRECAUTIONS Engine Cylinder Align the not ch on the pul ley wi th the hole at the t op of the cover. Unless all f uel has been drained f rom the fuel ta nk, leave the fuel valve lever in the OFF position to reduce the possibility of fuel leakage. If possible, avoid storage areas with high humidity, becau se that promot[...]

44 STORAGE REMOVAL FROM 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 ig nite or melt some materials. Do not use s heet plastic as a dust cover. A nonp orous cover will trap moisture around the pum p, pro[...]

45 TRANSP ORTING 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 syste m 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.[...]

46 ENGINE Engine Wi ll Not S tar t Possib le Cause Correction Engine La cks Pow er Possib le Cause Correction TAKING CARE OF UNEXPECTED PROBLEMS Fuel valve OFF. Choke ope n. Igniti on switc h OFF . Out of fuel. Bad f uel; pump stor ed without treatin g or drainin g gasolin e, or refueled wit h bad gaso line. Spark plu g fault y, fouled , or imprope[...]

47 TAKING CARE OF UNEXPECTED PROBLEMS PUMP No Pump Out put Possib le Cause Correction Low Pump O utput Possib le Cause Correction Hose col laps ed, dama ged, too long, or diam eter to o small. Air le ak at conne ctor. Stra iner c logged. Hose dama ged, too long, or diamet er too small. Margin al head. Engine la cks powe r. Prime pump (p. 19 ) Repl [...]

＜＞ 48 TECHNICA L INFORMATION Serial Number Location WH20X ENGINE SERIAL NUMBER Record the engine serial number in the space below. You will need this serial number w hen ordering parts, and when making technical or warranty inquiries (see page ). Engine serial number: Date of purchase: 58 11/10/26 10:43:39 31YB7730_049[...]

49 TECHNICAL INFORMATION Carburetor Modificati on 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 a ltitude that dif fers f rom that at whi[...]

50 TECHNICAL INFORMATION Emission Control System Inform ation The U.S. and California Clean Air Acts Tampering and Altering Source of Emissions The combustion process produces car bon monoxide, oxides of nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of nitrogen is very important because, under certain conditions, they react to form[...]

51 TECHNICAL INFORMATION Problems That May Affect Emissions Replacement Parts Maintenance If you are aware of any of the f ollowing 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) Black exhaust smoke or high f[...]

− − − 52 TECHNICAL INFORMATION Air Index An Air Index Information hang tag/lab el is applied to engines certified to an emission d urability time period in accordanc e 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 availab[...]

× ± ± − − ×× ＋ − 53 TECHNICAL INFORMATION Specifications Dimensions and weight Tune up Engine WH15X 16.3 in (415 mm) 14.2 in (360 mm) 15.9 in (405 mm) GX120 4-stroke, overhead valve, s ingle cylinder 49 lbs (22 kg) Length Width Height Dry mass [weight] Model Engine type Displaceme nt [bore stroke] Cooling sys tem Ignition system PTO sh[...]

＊ ＊ ＊ ＊ ＊ 54 TECHNICAL INFORMATION Pump WH15X (continued) 1.6 in (40 mm) 1.6 in (40 mm) 127 ft (39 m) 2 6 . 2f t( 8m ) Suction p ort diameter Discharge port diameter Total head (maximum) Suction head (maximum) Discharge pr essure Discharge capaci ty (maximum) Self-primi ng time 80 seconds at 16.4 ft (5 m) 105.7 US gal (400 L) 55 psi (379 [...]

× − − ×× ± ± ＋ − 55 TECHNICAL INFORMATION Dimensions and weight Engine design and performance Tune up WH20X 16.7 in (425 mm) 14.8 in (375 mm) 15.9 in (405 mm) 51.8 lbs (23.5 kg) GX160 4-stroke, overhead valve, s ingle cylinder Length Width Height Dry mass [weight] Model Engine type Displaceme nt [bore stroke] Cooling sys tem Ignition s[...]

＊ ＊ ＊ ＊ ＊ 56 TECHNICAL INFORMATION Pump WH20X (continued) 141 ft (43 m) 2 6 . 2f t( 8m ) 2 in (50 mm) 2 in (50 mm) Suction p ort diameter Discharge port diameter Total head (maximum) Suction head (maximum) Discharge pr essure Discharge capaci ty (maximum) Self-primi ng time 80 seconds at 16.4 ft (5 m) 132.1 US gal (500 L) 61 psi (421 kPa)[...]

57 DEALER LOCATOR INFORMATION Honda PUBLICATIONS Parts Catalog Shop Manual CONSUMER 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. This manual provides comp lete, illustrated parts lists . Available through your Honda dealer. This m[...]

58 CONSUMER INFORMATION Customer Service Inform ation Servicing dealership personnel are trained pr ofessionals. They should be able to answer any question y ou may have. If you encounter a problem that your dealer does not solve to your satisf action, please discuss it with the dealership’s management. The Service Manager or General Manager can [...]

59 MEMO 11/10/26 10:45:08 31YB7730_060[...]

60 MEMO 11/10/26 10:45:10 31YB7730_061[...]

−− QUICK REFERENCE INFORMAT ION Type Capacity Type Capacity Type Gap Before each use First 20 hours Subsequent Check engine oil level. Check air filter. Change engine oil. Refer to the maintenance s c h e d u l eo np a g e2 7. Fuel Engine Oil Spark Plug Maintenance 0.028 0.031 in (0.70 0.80 mm) W20EPR-U BPR6ES 0.61 US qt (0.58 L) 0.59 US qt (0.[...]

31YB77 30 00X31-YB7-7 300 o 2001-2009 Honda Motor Co., Ltd. -All Rights Reserved Owner’ s Manual WA TER PUMP WH15X/ WH20X Black DIC F101 N 2e Y 1 3000.2012.01 " Printed in Japan 00X31-YB7-7220 WH15X/WH20X[...]