Honda Automobiles GX25 Owner's Manual

1

OWNER’S MANUAL

SERIAL NUMBER ENGINE TYPE

GX25

HONDA EUROPE N.V.(EEC)

2

Indicates a strong possibility of severe personal

injury or death if instructions are not followed.

Indicates a possibility of personal injury or equipment

damage if instructions are not followed.

Indicates that equipment or property damage can

result if instructions are not followed.

The Honda engine is designed to give safe and dependable service
if operated according to instructions. Read and understand the
Owner’s Manual before operating the engine. Failure to do so
could result in personal injury or equipment damage.

Thank you for purchasing a Honda engine.

All information in this publication is based on the latest product
information available at the time of printing.

Honda Motor Co., Ltd. reserves the right to make changes at any
time without notice and without incurring any obligation.

No part of this publication may be reproduced without written
permission.

This manual should be considered a permanent part of the engine
and should remain with it if it is resold.

Pay special attention to statements preceded by the following
words:

Gives helpful information.

If a problem should arise, or if you have any questions about your
engine, consult an authorized Honda dealer.

This manual covers the operation and maintenance of your engine.

−

3

SAFETY INSTRUCTIONS

Honda engine is designed to give safe and
dependable service if operated according to
instructions. Read and understand the
Owner’s Manual before operating the
engine. Failure to do so could result in
personal injury or equipment damage.

To ensure safe operation

Do not smoke or allow flames or sparks where the engine is
refueled or where gasoline is stored.

If any fuel is spilled, clean it up completely and allow petroleum
vapours to dissipate before starting the engine.

Make sure that the filler cap is closed securely.

Do not overfill the fuel tank. There should be no fuel in the filler
neck.

Refuel in a well-ventilated area with the engine stopped.
Gasoline is highly flammable and explosive under certain
conditions.

Do not place flammable objects such as gasoline, matches, etc.,
close to the engine while it is running.

Know how to stop the engine quickly, and understand the
operation of all controls. Never permit anyone to operate the
engine without proper instructions.

Children and pets must be kept away from the area of operation
due to a possibility of burns from hot engine components or
injury from any equipment the engine may be used to operate.

To prevent fire hazards and to provide adequate ventilation,
keep the engine at least 1 meter (3 feet) away from buildings
and other equipment during operation. Do not place flammable
objects close to the engine.

Always make a pre-operation inspection (page ) before you
start the engine. You may prevent an accident or equipment
damage.

Do not start the engine without mounting it on an equipment. It
is designed to give safe and dependable service only when it is
mounted on an equipment. Before operating the engine, read
and understand the Owner’s Manual furnished with the
equipment along with this Owner’s Manual.

5

−

4

Safety Instruction

SAFETY INDICATION LOCATION

To ensure safe operation

Do not place anything on the engine, as it may create a fire
hazard.

Exhaust gas contains poisonous carbon monoxide. Avoid
inhalation of exhaust gases. Never run the engine in a closed
garage or confined area.

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. To avoid severe burns or fire hazards, let
the engine cool before transporting it or storing it indoors.

READ OWNER’S MANUAL BEFORE OPERATION.

This indication warns you of potential hazards that can cause
serious injury. Read it carefully.

5

PRE-OPERATION CHECK

Engine oil level

Be sure to check the engine on a level surface with the engine
stopped.

Running the engine with insufficient oil can cause serious
engine damage.

1.

UPPER OIL LEVEL

OIL FILLER NECK

ENGINE OIL FILLER CAP

UPPER OIL LEVEL

UPPER OIL LEVEL

If the level is low, fill to the top of the oil filler neck with the
recommended oil.

Remove the oil filler cap and check the oil level: it should reach
the top ofthe oilfiller neck.

Add the engine oil slowly to avoid overflowing, as the engine oil
tank capacity is small.

Every 10 hours, check the engine oil level and replenish oil up to
the top of the oil filler neck if the engine is operated for more than
10 hours continuously.

1.

2.

−

6

Using nondetergent oil or 2-stroke engine oil could shorten the
engine’s service life.

Ambient temperature

MULTI VISCOSITY

Use Honda 4-stroke, or an equivalent high detergent, premium
quality motor oil certified to meet or exceed U.S. automobile man­ufacturer’s requirements for service classification SG, SF. Motor
oils classified SG, SF will show this designation on the container.
SAE 10W-30 is recommended for general, all temperature use.

The re com me nde d o pe ra ti n g r an ge of this e ngi ne is 5 °C to
40 °C (23 °F to104 °F).

Standard/Tiller type:

The recommended operating range of this engine is 5 °C to 40 °C
(41°Fto104°F).

Pumptype:

7

Air cleaner

Never run the engine without the air cleaner. Rapid engine wear
will result.

Standard/Pump type: Tiller type:

2.

ELEMENT

Check cleaner for dirtor obstructionof element(page ).19

8

Fuel

Gasoline is extremely flammable and is explosive under certain
conditions.
Refuel in a well-ventilated area with the engine stopped. Do not
smoke or allow flames or sparks in the area where the engine is
refueled or where gasoline is stored.
Do not overfill the fuel tank (there should be no fuel in the filler
neck). After refueling, make sure the tank cap is closed properly
and securely.
Be careful not to spill fuel when refueling. Spilled fuel or fuel
vapor may ignite. If any fuel is spilled, make sure the area is dry
before starting the engine.
Avoid repeated or prolonged contact with skin or breathing of
vapor.
KEEP OUT OF REACH OF CHILDREN.

Fuel tank capacity:

Tiller type:Standard/Pump type:

3.

FUEL TANK CAP

MAXIMUM FUEL LEVEL

Use automotive gasoline (Unleaded or lowleaded is preferred to
minimize combustion chamber deposits).
FOR NEW SOUTH WALESONLY:
Use unleaded fuel only.
Never use an oil/gasoline mixture or dirty gasoline. Avoid getting
dirt, dust or water in the fuel tank.

0.55

(0.145 US gal , 0.121 Imp gal)

9

GASOLINES CONTAINING ALCOHOL

If you decide to use a gasoline containing alcohol (gasohol), be
sure it’s octane rating is at least as high as that recommended by
Honda. There are two types of ‘‘gasohol’’: one containing ethanol,
and the other containing methanol. Do not use gasohol that
contains more than 10% ethanol. Do not use gasoline containing
methanol (methyl or wood alcohol) that does not also contain
cosolvents and corrosion inhibitors for methanol. Never use
gasoline containing more than 5% methanol, even if it has
cosolvents and corrosion inhibitors.

Before buying fuel from an unfamiliar station, try to find out if
the fuel contains alcohol, if it does, confirm the type and
percentage of alcohol used. If you notice any undesirable
operating symptoms while using a gasoline that contains
alcohol, or one that you think contains alcohol, switch to a
gasoline that you know does not contain alcohol.

Fuel system damage or engine performance problems resulting
from the use of fuels that contain alcohol is not covered under
the warranty. Honda cannot endorse the use of fuels containing
methanol sinceevidence oftheir suitability is as yet incomplete.

10

Retightening bolts and nuts4.

Check for loose bolts and nuts. Tighten the bolts and nuts properly
and securely, if necessary.