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o2004-2009 Honda Motor Co., Ltd. -All Rights Reserved

Owner’s ManualWATER PUMP

WX10

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Keep this owner’s manual handy so you can refer toThis owner’s manual is considered a permanent pump and should remain with the water pump if reso

The information and specifications included in this peffect at the time of approval for printing. Hondareserves the right, however, to discontinue or changdesign at any time without notice and without incurrwhatever. No part of this publication may be repwritten permission.

The engine exhaust from this produccontains chemicals known to the Statof California to cause cancer, birthdefects or other reproductive harm.

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INTRODUCTION

Congratulations on your selection of a Honda wat

certain you will be pleased with your purchase ofwater pumps on the market.

We want to help you get the best results from yourand to operate it safely. This manual contains the infto do that; please read it carefully.

As you read this manual, you will find informatiosymbol. That information is intended to

damage to your water pump, other property, or the e

We suggest you read the warranty policy to fulcoverage and your responsibilities of ownership. This a separate document that should have been givedealer.

When your water pump needs scheduled maintenathat your Honda servicing dealer is specially traHonda water pumps. Your Honda servicing dealer is

satisfaction and will be pleased to answer youconcerns.

Best Wishes,Honda Motor Co., Ltd.

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INTRODUCTION

A FEW WORDS ABOUT SAFETY

Safety Labels

Safety Messages

Your safety and the safety of others are very importawater pump safely is an important responsibility.

To help you make informed decisions about safety, woperating procedures and other information on lamanual. This information alerts you to potential hhurt you or others.

Of course, it is not practical or possible to warn yhazards associated with operating or maintaining a must use your own good judgment.

You will find important safety information in a including:

–– on the pump.

–– preceded by a safety alert sy

of three signal words, DANGER, WARNING, or CAU

These signal words mean:

You WILL be KILLED or SERyou don’t follow instructions.

You CAN be KILLED or SERyou don’t follow instructions.

You CAN be HURT if y

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CONTENTS

................................................................PUMP SAFETY

......................................................................CONTROLS

.....................................................BEFORE OPERATION

....................................................................OPERATION

SERVICING YOUR PUMP

.....................IMPORTANT SAFETY INFORMATION ......................................SAFETY LABEL LOCATIONS

.................COMPONENT & CONTROL LOCATIONS ..................................................................CONTROLS

.........................................................Ignition Switch .............................................................Choke Lever

..........................................................Throttle Lever ...................................................Recoil Starter Grip

......................ARE YOU READY TO GET STARTED? ................................IS YOUR PUMP READY TO GO?

...........Check the General Condition of the Pump ..............Check the Suction and Discharge Hoses

.....................................................Check the Engine

..........................SAFE OPERATING PRECAUTIONS ....................................................PUMP PLACEMENT

...............................SUCTION HOSE INSTALLATION .........................DISCHARGE HOSE INSTALLATION

OPTIONAL GARDEN HOSE INSTALLATION (discha...................................................PRIMING THE PUMP

............................................STARTING THE ENGINE ...........................................SETTING ENGINE SPEED

............................................STOPPING THE ENGINE

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CONTENTS

SERVICING YOUR PUMP (continued)

........................................................................STORAGE

.............................................................TRANSPORTING

............TAKING CARE OF UNEXPECTED PROBLEMS

...............TECHNICAL & CONSUMER INFORMATION

............................................AIR FILTER INSPECTION ...............................................AIR FILTER CLEANING ...............................................SPARK PLUG SERVICE

.......................................COOLING FIN INSPECTION FUEL FILTER INSPECTION and FUEL TANK CLEAN

...........................................FUEL TUBE INSPECTION ......................................SPARK ARRESTER SERVICE

..........................................STORAGE PREPARATION ...................................................................Cleaning

...........................................................................Fuel .................................................................Engine Oil

.........................................STORAGE PRECAUTIONS ......................................REMOVAL FROM STORAGE

........................................................................ENGINE ..............................................Engine Will Not Start

................................................Engine Lacks Power ...........................................................................PUMP

.....................................................No Pump Output ...................................................Low Pump Output

.......................................TECHNICAL INFORMATION ........................................Serial Number Locations

Carburetor Modification for High Altitude Operat

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IMPORTANT SAFETY INFORMATION

Operator Responsibility

Pump Operation

RefuelWith Care

PUMP SAFETY

Most accidents can be prevented if you follow all inmanual and on the pump. The most common hazabelow, along with the best way to protect yourself an

It is the operator’s responsibility to provide the neceto protect people and property. Know how to stop thcase of emergency. If you leave the pump for any rethe engine off. Understand the use of all controls and

Be sure that anyone who operates the pump instruction. Do not let children operate the pump. Kpets away from the area of operation.

Pump only water that is not intended for humPumping flammable liquids, such as gasoline or fuea fire or explosion, causing serious injury. Pum

beverages, acids, chemical solutions, or any opromotes corrosion can damage the pump.

The Honda WX10 pump is designed to pump onlyintended for human consumption, and other uses cto the operator or damage to the pump and other pro

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PUMP SAFETY

Hot Exhaust

CarbonMonoxide Hazard

The muffler becomes very hot during operation andwhile after stopping the engine. Be careful not to twhile it is hot. Let the engine cool before transporstoring it indoors.

To prevent fire hazards, keep the pump at least 3 fefrom building walls and other equipment during oplace flammable objects close to the engine.

Exhaust gas contains poisonous carbon monoxide. A

exhaust gas. Never run the engine in a closed garage

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PU

SAFETY LABEL LOCATIONS

California type

The labels shown here contain important safety infread them carefully. These labels are considered peyour pump. If a label comes off or becomes hard toauthorized Honda servicing dealer for a replacement

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COMPONENT & CONTROL LOCATIONS

CONTROLS

THROTTLE

CHOKE LEVER

SUCTION PORT

DISCHARGE PORT CARRYING HAN

SPAR

PUMP DRAIN PLUG

TOP COVE

(insid

PUMP CHAMBERFILLER CAP

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CONTROLS

Ignition Switch

Choke Lever

O

OF

FF

F

O

ON

N

IGN

The ignition switch controls theignition system.

The ignition switch must be in theON position for the engine to run.

Turning the ignition switch to theOFF position stops the engine.

The OPEN position provides thecorrect fuel mixture for operation

after starting, and for restarting awarm engine.

The CLOSED position enrichesthe fuel mixture for starting a coldengine.

The choke lever opens and closesthe choke valve in the carburetor.

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CONTROLS

Throttle Lever

Recoil Starter Grip

THR

M

AX

XI

IM

MU

UM

MT

TH

HR

RO

OT

TT

TL

LE

E

The throttle lever controls enginespeed.

Moving the throttle lever in thedirec tions s hown makes theengine run faster or slower.

Pump output is controlled byadjusting the throttle lever. Atmaximum throttle position, thepump will deliver the highesto ut pu t v ol um e. Mo vi ng t he

throttle lever toward the idleposition will decrease the outputvolume of the pump.

Pulling the starter grip operates the recoil starter tofor starting.

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BEFORE OPERATION

ARE YOU READY TO GET STARTED?

Knowledge

Your safety is your responsibility. A little time spent isignificantly reduce your risk of injury.

Read and understand this manual. Know what thehow to operate them.

Familiarize yourself with the pump and its operationpumping. Know what to do in case of emergencies.

Be sure of what you are pumping. This pump is d

only fresh water that is not intended for human consu

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BEFORE OPERATION

IS YOUR PUMP READY TO GO?

Check theGeneral Condition of the Pump

For your safety, and to maximize the service life of yis very important to take a few moments before you to check its condition. Be sure to take care of any prohave your servicing dealer correct it, before you oper

Improperly maintaining this pump,or failing to correct a problembefore operation, could cause amalfunction in which you could beseriously injured.

Always perform a preoperationinspection before each operation,and correct any problem.

Exhaust gas contains poisonous carbon monoxide. Aexhaust gas. Never run the engine in a closed garage

To prevent fire hazards, keep the pump at least 3 fefrom building walls and other equipment during oplace flammable objects close to the engine.

Before beginning your preoperation checks, be surelevel surface and the ignition switch is in the OFF pos

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BEFORE

Check the Suction and Discharge Hoses

Check the Engine

Check the general condition of the hoses. Be sureserviceable condition before connecting themRemember that the suction hose must be reinforceprevent hose collapse.

Check that the sealing washer in the suction hos

good condition (see page ).

Check that the hose connectors and clamps are s(see pages and ).

Check that the strainer is in good condition and i

suction hose (see page ).

Check the engine oil level (see page ). Running low oil level can cause engine damage.

Check the air filter (see page ). A dirty air filter wto the carburetor, reducing engine and pump perfo

Check the fuel level (see page ). Starting with ato eliminate or reduce operating interruptions for re

16

16

16

30

28

35

17

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OPERATION

SAFE OPERATING PRECAUTIONS

To safely realize the full potential of this pump, youunderstanding of its operation and a certain amounits controls.

Before operating the pump for the first time, pIMPORTANT SAFETY INFORMATION on page and

BEFORE OPERATION .

For your safety, avoid starting or operating the engiarea, such as a garage. Your engine’s exhaust cocarbon monoxide gas which can collect rapidly in and cause illness or death.

Pump only fresh water that is not intended for humPumping flammable liquids, such as gasoline or fuea fire or explosion, causing serious injury. Pumbeverages, acids, chemical solutions, or any opromotes corrosion can damage the pump.

Do not allow the pump to tip over or fall in its side pump is not positioned upright or if there is not enothe pump, cooling air can become restricted or thmay be obstructed, causing engine damage.

5

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PUMP PLACEMENT

At least 3 feet(1 meter)

Always position the pump in an upright positionsurface at least 3 feet (1 meter) away from anequipment.

For best pump performance, place the pump near thuse hoses that are no longer than necessary. Tha

pump to produce the greatest output with the least se

As head (pumping height) increases, pump oMaximum head specifications are shown in the tablelength, type, and size of the suction and dischargsignificantly affect pump output.

Discharge head capability is always greater thcapability, so it is important for suction head to be ttotal head.

Minimizing suction head (placing the pump near t

also very important for reducing self-priming time. is the time it takes the pump to bring water the distahead during initial operation.

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OPERATION

SUCTIONHOSE INSTALLATION

HOSE COUPLER

HOS

HOSECLAMP RI

SEALINGWASHER

ToSUCTIONPORT

Use the hose, hose connector and hose clamp providThe suction hose must be reinforced with a noncbraided wire construction to prevent suction hose co

The suction hose should be no longer than performance is best when the pump is near the wa

hoses are short.

Never use a suction hose with an inside diameter(1 inch).

Use a hose clamp to securely fasten the hose connec

hose in order to prevent air leakage and loss of suctihose connector sealing washer is in good condition.

Install the strainer (provided with the pump) on thesuction hose, and secure it with a hose clamp. The stprevent the pump from becoming clogged or damag

Securely tighten the hose connector on the pump suc

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DISCHARGE HOSE INSTALLATION

OPTIONAL GARDEN HOSE INSTALLATION (discharg

HOSE CLAMP

HOSE CONNECTORDISCHARGE HOSE

Attach a hose and hose connector to the pump’s discIt is best to use a short, large-diameter hose, becausfluid friction and improve pump performance. Adiameter hose will increase fluid friction and reduce pIf the discharge hose is equipped with a shutoff valveshut off the discharge water for a long period of ti

cause the pump to overheat.

An adapter is supplied with the pump for optiona

garden hose to the pump discharge port. Garden hoand economical option for carrying the discharged smaller diameter will reduce the maximum dischargpump.Hand-tighten the adapter just tight enough to prev

O O

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OPERATION

DISCHARGEPORTGARDEN

HOSE

ADAPTER

Overtightening the adapter can damage the threadIf the garden hose is equipped with a shut off valvshut off the discharge water for a long period of tcause the pump to overheat.Do not install the adapter on the pump suction ponot suitable for use as suction hose, because it wi

cause the pump to cavitate, damaging the pump.

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PRIMING THE PUMP

STARTING THE ENGINE

PUMPCHAMBER FILLERCAP

CHOKE LE

Before starting the engine, remove the filler capchamber, and completely fill the pump chamber witthe filler cap, and tighten it securely.

Operating the pump dry will destroy the pump sea

been operated dry, stop the engine immediately, anto cool before priming.

To restart a warm engine, leave the choke lever in t

To start a cold engine, move the choke lever to the 1.

OPERATION

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OPERATION

THROTTLE LEVER

FU(cle

I

I

DL

L

E

Press the priming bulb repeatedly until fuel can beplastic fuel return tube.

Move the throttle lever away from the IDLE positithan the halfway point.

2.

3.

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IGNIT

OO N

Diirreeccttiioonn ttoo ppuu

Turn the ignition switch to the ON position.

Hold the carrying handle securely and pull the suntil you feel resistance, then pull briskly in thearrow as shown below.Do not allow the recoil starter grip to snap back agReturn it gently to prevent damage to the starter.

4.

5.

OPERATION

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OPERATION

CHOKE LEVE

OPEN

If the choke lever was moved to the CLOSED posiengine, gradually move it to the OPEN position

warms up.

6.

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SETTING ENGINE SPEED

THROTTLE LEVER

LLOOWW

HII G H

After starting the engine, move the throttle lever to tfor self-priming, and check pump output.

Pump output is controlled by adjusting engine spthrottle lever in the HIGH direction will increase pmoving the throttle lever in the LOW direction wi

output.

OPERATION

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OPERATION

STOPPING THE ENGINE

THROTTLELEVER

LOOWW

To stop the engine in an emergency, simply turn the the OFF position. Under normal conditions, usprocedure.

Turn the ignition switch to the OFF position.

Move the throttle lever to the LOW position.1.

2.

SERVICING YOUR PUMP

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SERVICING YOUR PUMP

THE IMPORTANCE OF MAINTENANCE

Good maintenance is essential for safe, economicaloperation. It will also help reduce air pollution.

Improperly maintaining this pump,

or failure to correct a problembefore operation, can cause amalfunction in which you can beseriously hurt or killed.

Always follow the inspection and

maintenance recommendations andschedules in this owner’s manual.

To help you properly care for your pump, the followa maintenance schedule, routine inspection proced

maintenance procedures using basic hand tools. Othat are more difficult, or require special tools, areprofessionals and are normally performed by a Hoother qualified mechanic.

The maintenance schedule applies to normal opera

you operate your pump under severe conditions, shigh-load or high-temperature operation, or use industy conditions, consult your servicing dealer for rapplicable to your individual needs and use.

SERVICING YOUR PUMP

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SERVICING YOUR PUMP

MAINTENANCE SAFETY

Safety Precautions

Carbon monoxide poisoning from engine exhaus

Burns from hot parts.

Injury from moving parts.

Some of the most important safety precautions follcannot warn you of every conceivable hazard tperforming maintenance. Only you can decide whshould perform a given task.

Failure to properly followmaintenance instructions andprecautions can cause you to beseriously hurt or killed.

Always follow the procedures andprecautions in the owner’s manual.

Make sure the engine is off before you begin anyrepairs. This will eliminate several potential hazard

Operate outside away from open windows or do

Let the engine and exhaust system cool before to

Do not run the engine unless instructed to do so

SERVICING

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SERVICING

MAINTENANCE SCHEDULE

ITEMREGULAR SERVICE PERIOD (3)

Engine oil

Air filter

Nuts, bolts,

fasteners

Spark plug

Spark arrester

(applicable types)

Fuel tank

Fuel filter

Idle speed

Valve clearance

Combustionchamber

Fuel tubes

Oil tube

Impeller

Pump inlet valve

Check level

Change

CheckClean

Check

(Retighten

if necessary)

Check-adjust

Replace

CleanClean

Clean

Clean

Check-adjust

Check-adjust

Clean

Check

Check

Check

Check

Check

Perform at every indicated

month or operating hour

interval, whichever comes first.

Every 2 years (Replace if nec

After every 300 hrs.

Every 2 years (Replace if nec

(1)

Engine cooling fins

Impeller clearance

First

month

or

10 hrs.

Each

use

These items should be serviced by your servicing have the proper tools and are mechanically profic

Service more frequently when used in dusty areas.

(2)

(1)

Every

3 months

or

25 hrs.

Every

6 months

or

50 hrs.

SERVICING YOUR PUMP

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SERVICING YOUR PUMP

REFUELING

FUELTANKCAP

MAXI

Check the fuel level by looking through the translucefuel level is low, refuel in a well-ventilated areastopped. If the engine has been running, allow it torefuel the engine inside a building where gasolineflames or sparks.

Wipe up spills immediately.Handle fuel only outdoors.

Stop the engine and keep heat,sparks, and flame away.

Gasoline is highly flammable andexplosive.

You can be burned or seriously

injured when handling fuel.

SERVICING

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FUEL RECOMMENDATIONS

To refuel, rest the engine on the ground with the fuup, as shown. Remove the fuel tank cap, and fill the t

to the bottom of the filler neck. Refuel carefully to aDo not overfill. There should no fuel in the filler nectighten the fuel tank cap securely.

Spilled fuel is not only a fire hazard, it causes enviroWipe up spills immediately.

Fuel can damage paint and plastic. Be careful not filling your fuel tank. Damage caused by spilled fuunder the Distributor’s Limited Warranty.

This engine is certified to operate on regular unleadepump octane rating of 86 or higher.

Never use stale or contaminated gasoline or an oil/

Avoid getting dirt or water in the fuel tank.

You may use regular unleaded gasoline containing nEthanol (E10) or 5% Methanol by volume. In additiocontain cosolvents and corrosion inhibitors.

Use of fuels with content of Ethanol or Methanol grabove may cause starting and/or performance probdamage metal, rubber, and plastic parts of the fuel sy

Engine damage or performance problems that result

SERVICING YOUR PUMP

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ENGINEOIL LEVEL CHECK

OIL FILLERCA

UPPER LIMIT

If the oil level is low, fill to the edge of the oil fi

recommended oil (see page ). To avoid overfillibe sure the engine is in a level position, as shown,

Insert and remove the dipstick without screwing it iCheck the oil level shown on the dipstick.

Remove the oil filler cap/dipstick and wipe it clean.

Check the engine oil level with the engine stoppeposition.

Check the engine oil level before each use, or eoperated continuously.

1.

2.

3.

34

SERVICING

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Reinstall the oil filler cap/dipstick securely.

Running the engine with a low or excessive oil leveldamage. This type of damage is not covered byLimited Warranty.

4.

SERVICING YOUR PUMP

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ENGINEOIL CHANGE

FUELTANKCAP

Drain the used oil while the engine is warm. Warm and completely.

Check that the fuel tank cap is tightened securely.

Place a suitable container next to the engine to catc

Please dispose of used motor oil in a manner that ithe environment. We suggest you take used oil in a

to your local recycling center or service station fonot throw it in the trash, pour it on the ground, odrain.

Remove the oil filler cap/dipstick and drain the oil by tipping the engine toward the oil filler neck.

1.

2.

3.

SERVICING

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OIL FI

UPPER LIMIT

With the engine in a level position, fill to the edge owith the recommended oil (see page ).

Some oil will remain in the engine after draining. Wfresh oil, start with less than 2.7 US oz. (80 cc). Sloil to fill to the edge of the oil filler hole as shown b

Reinstall the oil filler cap/dipstick securely.If any oil is spilled, make sure to wipe it.

Running the engine with a low or excessive oiengine damage. This type of damage is not Distributor’s Limited Warranty.

4.

5.

34

SERVICING YOUR PUMP

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ENGINE OIL RECOMMENDATIONS

AMBIENT TEMPERATURE

Oil is a major factor affecting performance and 4-stroke automotive detergent oil.

SAE 10W-30 is recommended for general use. Other

in the chart may be used when the average temperatwithin the indicated range.

Use 4-stroke motor oil that meets or exceeds the reqservice category SJ or later (or equivalent). Alwaservice label on the oil container to be sure it include

later (or equivalent).

SERVICING

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AIR FILTER INSPECTION

AIR CLEANER COVER

CHO

AIR FILTER

If the air filter is dirty, clean it as described on page filter if it is damaged.

Press the latch tab on the top of the air cleaner covecover. Check the air filter to be sure it is clean and in g

Reinstall the air filter and air cleaner cover.

Operating the engine without an air filter, or with a dwill allow dirt to enter the engine, causing rapid enginof damage is not covered by the Distributor’s Limited

3

SERVICING YOUR PUMP

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AIR FILTER CLEANING

AIR FILTER

A dirty air filter will restrict air flow to the carburetorperformance. If you operate the pump in very dustyair filter more frequently than specified in the Main(see page ).

Clean the air filter in warm soapy water, rinse,

thoroughly. Or clean in nonflammable solvent and

Dip the air filter in clean engine oil, then squeeze The engine will smoke when started if too mucfoam.

Wipe dirt from the air cleaner base and cover, usincareful to prevent dirt from entering the air ductcarburetor.

1.

2.

3.

27

SERVICING

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SPARK PLUGSERVICE

TOP COVER 5 mmHEX B

In order to service the spark plug, you will need a s(commercially available).

CMR5H

Incorrect spark plugs can cause engine damage.

Remove the top cover.Loosen the 5 mm hex bolt with a hexagon wrenchtop cover.

You may be injured from rotatingparts or burned by the muffler.Do not operate the engine whenthe top cover is removed.

Do not pull the recoil startehandle when the top cover isremoved.

1.

Recommended spark plug: (NGK)

SERVICING YOUR PUMP

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SPAR

SPARK PLUG CAP

SIDE ELECTRODE

First remove any dirt from around the spark disconnect the spark plug cap.

Remove the spark plug with a 5/8-inch spark plug w

Inspect the spark plug. Replaceit if the electrodes are worn, or

if the insulator is cracked orchipped.

M e as ur e t he s pa rk p lu gelectrode gap with a wire-typefeeler gauge.

Correct the gap, if necessary, bycare fully bending the sideelectrode.

The gap should be:

2.

3.

4.

5.

SERVICING

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After the spark plug seats, tighten with a 5/8-inch sto compress the washer.

If reinstalling the used spark plug, tighten 1/8 spark plug seats.

If installing a new spark plug, tighten 1/2 turn aftseats.

A loose spark plug can overheat and damage the eOvertightening the spark plug can damage thcylinder head.

Attach the spark plug cap.

Install the top cover, and tighten the 5 mm hex bohexagon wrench (see page ).

7.

8.

9.37

SERVICING YOUR PUMP

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COOLING FIN INSPECTION

COOLING FINS

Loosen the 5 mm hex bolt with a hexagon wrenchtop cover (see page ).

Inspect the engine cooling fins, and clean out dclogged.

Install the top cover, and tighten the 5 mm hex bohexagon wrench (see page )

371.

2.

3.37

SERVICING

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FUEL FILTER INSPECTION and FUEL TANKCLEANIN

Remove the fuel tank cap, and drain the fuel igasoline container by tipping the engine toward th


You can be burned or seriouslyinjured when handling fuel.

Keep heat, sparks, and flameaway.Handle fuel only outdoors.Wipe up spills immediately.

Check that the engine oil filler cap/dipstick is tighte1.

2.

SERVICING YOUR PUMP

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FUEL TUBE INSPECTION

FUEL FILTER

FU

Pull the fuel filter out through the fuel filler necblack fuel tube with a piece of wire, such as a pa

paper clip.

Refer to the Honda shop manual for tube replacemetake the pump to a Honda pump servicing dealer

Check the fuel supply and return tubes, and replacdamaged, cracked or leaking.

Insert the fuel filter into the fuel tank and tightensecurely.

Rinse sediment from the fuel tank, using nonflaflashpoint solvent.

Inspect the fuel filter. If the fuel filter is dirty, wanonflammable or high flashpoint solvent. If texcessively dirty, replace it.

4.

3.

5.

6.

SERVICING

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SPARKARRESTERSERVICE

MUFFLER

4

The spark arrester must be serviced every 100 functioning as designed.

If the engine has been running, the muffler will be vmuffler to cool before servicing the spark arrester.

Loosen the 5 mm hex bolt with a hexagon wrenchtop cover (see page ).

Remove the 4 mm screws from the spark arresterspark arrester from the muffler.

1.

2.

37

SERVICING

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SPARKARRESTERSCREEN

Use a brush to remove carbon deposits from tscreen. Be careful to avoid damaging the screen.

The spark arrester must be free of breaks and hspark arrester if it is damaged.

Install the spark arrester in the reverse order of disa

When you attach the spark arrester, spark arrestepointed toward the side opposite the spark plug.


3.

4.

5.37

STORAGE

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STORAGEPREPARATION

Cleaning

Proper storage preparation is essential for keeping yofree and looking good. The following steps will helpcorrosion from impairing your pump’s function andwill make the engine easier to start when you use the

Wash the engine and pump.

Wash the engine by hand, and be careful to preentering the air cleaner or muffler opening. Keep

controls and all other places that are difficult promotes rust.

Using a garden hose or pressure washing equwater into the air cleaner or muffler opening.

cleaner will soak the air filter, and water that paair filter or muffler can enter the cylinder, causing

Water contacting a hot engine can cause damhas been running, allow it to cool for at least hawashing.

Wipe dry all accessible surfaces.

Fill the pump chamber with clean, fresh water,outdoors and let it run until it reaches n

1.

2.

3.

STORAGE

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Fuel

PUMP DRAIN PLU

Stop the engine, and allow it tocool.

Remove the pump drain plug,and flush the pump with clean,fresh water. Allow the water todrain from the pump chamber,then reinstall the drain plug.

After the pump is clean and dry,touch up any damaged paint,and coat areas that may rustwith a light film of oil. Lubricatecontrols with a silicone spray

lubricant.

Gasoline will oxidize and deteriorate in storage. cause hard starting, and it leaves gum deposits t

system. If the gasoline in your engine deteriorates dumay need to have the carburetor and other fuel sysserviced or replaced.

The length of time that gasoline can be left in yocarburetor without causing functional problems wfactors as gasoline blend, your storage temperaturesfuel tank is partially or completely filled. The air in a ptank promotes fuel deterioration. Very warm storaccelerate fuel deterioration. Fuel deterioration prowithin a few months or even less if the gasoline wa

4.

5.

6.

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Adding a Fuel Stabilizer to Extend Fuel Storage Life

When adding a fuel stabilizer, fill the fuel tank withonly partially filled, air in the tank will promote during storage. If you keep a container of gasolinesure that it contains only fresh gasoline.

Add fuel stabilizer following the manufacturer’s ins

After adding a fuel stabilizer, run the engine outdoto be sure that treated gasoline has replaced the uin the carburetor.

Dry operation will damage the pump seal. Bechamber is filled with water before starting the eng

Stop the engine.3.

1.

2.

STORAGE

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Draining the Fuel Tank and Carburetor

CHOKE LEVER

FUEL RETURN TUBE(clear)

Wipe up spills immediately.Handle fuel only outdoors.

Keep heat, sparks, and flameaway.


You can be burned or seriouslyinjured when handling fuel.

Tip the engine toward the fuel filler neck again to d

Press the priming bulb several times until there i

the fuel return tube.

Remove the fuel tank cap and drain the fuel igasoline container by tipping the engine toward th

Check that the engine oil filler cap/dipstick is tighte1.

2.

3.

4.

O

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Engine Oil

STORAGEPRECAUTIONS

Change the engine oil (see page ).Loosen the 5 mm hex bolt with a hexagon wrenchtop cover (see page ).Remove the spark plug (see page ).Apply a couple of drops of clean engine oil into theInstall the top cover temporarily.

Remove the top cover, then reinstall the spark plugPull the starter grip several times to distribute the o

Move the choke lever to the CLOSED (upwards) poPull the starter rope slowly until resistance is felt. T

valves, so moisture cannot enter the engine cylstarter rope gently.

If your pump will be stored with gasoline in th

carburetor, it is important to reduce the hazard oignition. Select a well-ventilated storage area away frthat operates with a flame, such as a furnace, water dryer. Also avoid any area with a spark-producing where power tools are operated.

If possible, avoid storage areas with high humidpromotes rust and corrosion.

Place the pump on a level surface.


1.2.

3.4.5.

6.7.8.

3738

9.10.

37

32

STORAGE

REMOVAL FROMSTORAGE

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REMOVAL FROMSTORAGE

Check your pump as described in the BEFORE OPERthis manual.

If the fuel was drained during storage preparationfresh gasoline. If you keep a container of gasolinesure that it contains only fresh gasoline. Gasol

deteriorates over time, causing hard starting.

If the cylinder was coated with oil during storageengine may smoke briefly at startup. This is normal.

TRANSPORTING

If th h b i ll th i t

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If the pump has been running, allow the engine to cminutes before loading the pump on the transpo

engine and exhaust system can burn you and materials.

Keep the pump level when transporting to reduce fuel leakage.

ENGINE

TAKING CARE OF UNEXPECTED PRO

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ENGINE

Engine Will Not Start Possible Cause

Engine Lacks Power Possible Cause

Mov

CLO

unle

Mov

start

warmTurn

ON.

Refu

Drai

carb

Refugaso

Gap

spar

Dry

plug

thro

posi

leve

Rep

com

nece

Check control

positions.

Check fuel.

Remove and inspect

spark plug.

Take engine to an

authorized Honda

servicing dealer, or

refer to shop manual.

Choke open.

Improper throttle

position.

Ignition switch OFF.

Out of fuel.

Bad fuel; pump stored

without treating or

draining gasoline, orrefueled 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.

1.

2.

3.

4.

TAKING CARE OF UNEXPECTED

PUMP

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PUMP

Possible Cause No Pump Output

Low Pump Output Possible Cause

Check pump

chamber.

Check suction hose.

Measure suction and

discharge head.

Check engine.

Pump not primed.

Hose collapsed, cut or

punctured.

Strainer not completely

underwater.

Air leak at connector.

Strainer clogged.

Excessive head.

Engine lacks power.

Lever not in ‘‘HIGH’’

position.

Hose collapsed,

damaged, too long, or

diameter too small.

Air leak at connector.

Check throttle lever.

Check suction hose.

Prim

Rep

(p. 1

Sink

the ehose

unde

Rep

if mi

Tigh

and

Clea

strai

Relo

hose

(p. 1

See

Mov

posi

Rep

(p. 1

Rep

if mi

Tigh

1.

2.

3.

4.

1.

2.

TECHNICAL & CONSUMER INFORM

TECHNICAL INFORMATION

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TECHNICAL INFORMATION

Serial Number Locations

ENGINE SERIAL NUMBER

PUMPSERIAL NUMBER

TECHNICAL & CONSUMER IN

Carburetor Modification for High Altitude Operation

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Carburetor Modification for High Altitude Operation

At high altitude, the standard carburetor air-fuel mrich. Performance will decrease, and fuel consumptiovery rich mixture will also foul the spark plug and caOperation at an altitude that differs from that at whiccertified, for extended periods of time, may increase

High altitude performance can be improved by specto the carburetor. If you always operate your pump a5,000 feet (1,500 meters), have your servicing dealerburetor modification. This engine, when operated at the carburetor modifications for high altitude useemission standard throughout its useful life.

Even with carburetor modification, engine horsepoabout 3.5% for each 1,000-foot (300-meter) increaseffect of altitude on horsepower will be greatercarburetor modification is made.

When the carburetor has been modified for high athe air-fuel mixture will be too lean for low altitude altitudes below 5,000 feet (1,500 meters) with a momay cause the engine to overheat and result in seriouFor use at low altitudes, have your servicing dcarburetor to original factory specifications.

TECHNICAL & CONSUMER INFORMAT

Emission Control System Information

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Emission Control System Information

Source of Emissions

Tampering and Altering

The U.S. and California Clean Air Acts

The combustion process produces carbon monnitrogen, and hydrocarbons. Control of hydrocarbonitrogen is very important because, under certainreact to form photochemical smog when subjected to

monoxide does not react in the same way, but it is tox

Honda utilizes lean carburetor settings and other sthe emissions of carbon monoxide, oxides ohydrocarbons. Additionally, Honda fuel systems utand control technologies to reduce evaporative emis

Tampering with or altering the emission control sysemissions beyond the legal limit. Among those actampering are:

EPA and California regulations require all manufawritten instructions describing the operation and maision control systems.

The following instructions and procedures must be to keep the emissions from your Honda engine witstandards.


Problems That May Affect Emissions

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y

Replacement Parts

If you are aware of any of the following symptoms, 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 fuel consumption.

The emission control systems on your Honda enginbuilt, and certified to conform with EPA and Caregulations. We recommend the use of genuiwhenever you have maintenance done. Thesereplacement parts are manufactured to the same original parts, so you can be confident of their perfoof replacement parts that are not of the original dmay impair the effectiveness of your emission contro

A manufacturer of an aftermarket part assumes the the part will not adversely affect emission pmanufacturer or rebuilder of the part must certify thwill not result in a failure of the engine to compregulations


Air Index

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The durability description is intended to provide yourelating the engine’s emission durability period. Theindicates the useful life period for the engine’s system. See your Emission Control System Warrainformation.

The bar graph is intended to provide you, our custocompare the emissions performance of available enthe Air Index, the less pollution.

An Air Index Information hang tag/label is applied toto an emission durability time period in accorequirements of the California Air Resources Board.

Models certified for sale in California.

The Air Index Information hang tag must remain on tsold. Remove the hang tag before operating the pum

Descriptive TermModerate

Intermediate

Extended

Applicable to Emission Dur50 hours (0-80 cc, inclusiv

125 hours (greater than 80125 hours (0-80 cc, inclusiv250 hours (greater than 80300 hours (0-80 cc, inclusiv500 hours (greater than 80

1000 hours (225 cc and grea


Specifications

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Dimensions and weight

Engine design and performance

Tune up

Pump

12.8 in (325 mm)

8.7 in (220 mm)

13.4 lbs (6.1 kg)

GX25T

4-stroke, overhead camshaft,

1.5 cu-in (25.0 cm )

[1.4 1.0 in (35.0 26.0 mm

11.8 in (300 mm)

Model

Engine type

Displacement

[bore stroke]

Cooling system

Ignition system

Engine oil capacity

Fuel tank capacity

Forced air

Transistor magneto

0.124 US gal (0.47 )

Spark plug gap

Idle speedValve clearance

(cold)

Other speciffications

3,100 200 rpm

0.11 0.02 mm

0.08 0.02 mm

No other adjustments needed

1.0 in (25 mm)

1.0 in (25 mm)

118 ft (36 m)

Length

Width

Height

Dry mass [weight]

Suction port diameter

Discharge port diameter

Total head (maximum)

0.024 0.028 in

(0.60 0.70 mm)

Intake:

Exhaust:

2.7 US oz. (0.08 )


CONSUMER INFORMATION

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Honda Publications

Shop Manual

Parts Catalog

These publications will give you additional maintaining and repairing your pump. You may ordeHonda pump dealer.

This manual covers complete maintenance and overhIt is intended to be used by a skilled technician.

This manual provides complete, illustrated parts lists


Customer Service Information

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Servicing dealership personnel are trained professiobe able to answer any question you may have. If problem that your dealer does not solve to your sadiscuss it with the dealership’s management. The SeGeneral Manager can help. Almost all problems are s

If you are dissatisfied with the decision made bymanagement, contact the Honda Power EquipRelations Office. You can write to:

Or telephone: (770)497-6400

American Honda Motor Co., Inc.Power Equipment DivisionCustomer Relations Office4900 Marconi DriveAlpharetta, Georgia 30005-8847

When you write or call, please give us this informatio

Model and serial number (see page )

Name of the dealer who sold the pump to you

Name and address of the dealer who services your

Date of purchase

Your name address and telephone number

54

MEMO

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MEMO

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MEMO

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QUICKREFERENCE INFORMATION

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Unleaded gasolioctane rating o(page 28 )SAE 10W-30, APequivalent), fo(page 34 )

Check engine oilCheck air filter.Check all bolts aChange engine o

R ef er t o t he schedule on pag

Type

Type

TypeGap

Idle speedBefore eachuse

First10 hoursSubsequent

Fuel

Engine Oil

Spark Plug

Carburetor

Maintenance

3,100 200 rpm

0.024 0.028 in (CMR5HNGK:

(page 38 )

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31YE9612

00X31-YE9-6120

2eY1300.2009.04Printed in Japan

Documents

00X31YE96120