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Honda GX25 User Manual

Honda GX25
34 pages
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INTRODUCTION
CONTENTS
SAFETY MESSAGES
DAMAGE PREVENTION MESSAGES
OWNER’SMANUAL
GX25·GX35
1
Thank you for purchasing a Honda engine. We want to help you to
get the best results from your new engine and to operate it safely.
This manual contains information on how to do that; please read it
carefully before operating the engine. If a problem should arise, or
if you have any questions about your engine, consult an
authorized Honda servicing dealer.
This manual should be considered a permanent part of the engine
and should remain with the engine if resold.
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects
or other reproductive harm.
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.
The purpose of these messages is to help prevent damage to your
engine, other property, or the environment.
Your engine or other property can be damaged if you
don’t follow instructions.
This word means:
You will also see other important messages that are preceded by
the word NOTICE.
Each message tells you what the hazard is, what can happen, and
what you can do to avoid or reduce injury.
You CAN be HURT if you don’t follow
instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
You WILL be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
These signal words mean:
A safety message alerts you to potential hazards that could hurt
you or others. Each safety message is preceded by a safety alert
symbol and one of three words, DANGER, WARNING, or
CAUTION.
Your safety and the safety of others are very important. We have
provided important safety messages in this manual and on the
engine. Please read these messages carefully.
We suggest you read the warranty policy to fully understand its
coverage and your responsibilities of ownership. The warranty
policy is a separate document that should have been given to you
by your dealer.
Review the instructions provided with the equipment powered by
this engine for any additional information regarding engine
startup, shutdown, operation, adjustments or any special
maintenance instructions.
United States, Puerto Rico, and U.S. Virgin Islands:
.......................INTRODUCTION .1
................SAFETY MESSAGES .1
..........SAFETY INFORMATION .2
.....SAFETY LABEL LOCATION .2
COMPONENT & CONTROL
..............................LOCATIONS .2
................................FEATURES .3
BEFORE OPERATION
....................................CHECKS .4
..............................OPERATION .4
SAFE OPERATING
.....................PRECAUTIONS .4
......STARTING THE ENGINE .4
.....SETTING ENGINE SPEED .5
......STOPPING THE ENGINE .6
.....SERVICING YOUR ENGINE .6
THE IMPORTANCE OF
....................MAINTENANCE .6
......MAINTENANCE SAFETY .6
.......SAFETY PRECAUTIONS .7
MAINTENANCE
............................SCHEDULE .7
...........................REFUELING .8
...........................ENGINE OIL .8
............Recommended Oil .8
..................Oil Level Check .9
.........................Oil Change .9
......................AIR CLEANER .10
........................Inspection .10
..........................Cleaning .10
......................SPARK PLUG .11
...................COOLING FINS .11
FUEL FILTER AND FUEL
...................................T
ANK .12
.............SPARK ARRESTER .12
HOT AIR TUBE REMOVAL/
...................INSTALLATION .14
HELPFUL TIPS &
......................SUGGESTIONS .15
...STORING YOUR ENGINE .15
................TRANSPORTING .16
TAKING CARE OF
....UNEXPECTED PROBLEMS .16
TECHNICAL & CONSUMER
.......................INFORMATION .17
.....Serial Number Location .17
.....Remote Control Linkage .17
Carburetor Modifications for
.....High Altitude Operation .17
Emission Control System
.........................Information .18
..............................Air Index .18
.....................Specifications .19
........Tuneup Specifications .19
Quick Reference
.........................Information .19
................Wiring Diagrams .19

Other manuals for Honda GX25

Questions and Answers:

Honda GX25 Specifications

General IconGeneral
Compression Ratio8.0:1
PTO Shaft RotationCounterclockwise (from PTO shaft side)
Ignition SystemTransistorized magneto ignition
Starting SystemRecoil starter
Lubrication SystemOil mist
Displacement25 cc
Net Power Output0.72 kW (1.0 hp) @ 7, 000 rpm
Net Torque1.0 Nm (0.73 lbs ft) @ 5, 000 rpm
Fuel Tank Capacity0.58 L (0.15 US gal)
Oil Capacity0.08 liters
Air CleanerSemi-dry type
Dry Weight2.78 kg (6.1 lbs)
Bore x Stroke35 x 26 mm (1.4 x 1.0 in)

Summary

INTRODUCTION

SAFETY MESSAGES

Explains hazard symbols, signal words, and their meanings for safety.

SAFETY INFORMATION

General safety advice and precautions for operating the engine.

SAFETY LABEL LOCATION

COMPONENT & CONTROL LOCATIONS

FEATURES

BEFORE OPERATION CHECKS

Check the General Condition of the Engine

Visual inspection steps for the engine's exterior and components.

Check the Engine

Specific checks for fuel level, oil level, and air filter status.

OPERATION

SAFE OPERATING PRECAUTIONS

General safety rules to follow while operating the engine.

STARTING THE ENGINE

Step-by-step guide on how to start the engine.

SETTING ENGINE SPEED

STOPPING THE ENGINE

SERVICING YOUR ENGINE

THE IMPORTANCE OF MAINTENANCE

Emphasizes the benefits of regular maintenance for engine longevity and performance.

MAINTENANCE SAFETY

Safety precautions to observe before performing any maintenance tasks.

MAINTENANCE SCHEDULE

REFUELING

ENGINE OIL

Recommended Oil

Specifies the recommended engine oil type, viscosity, and API service classification.

Oil Level Check

Procedure to check the engine oil level before each use or operation.

Oil Change

Step-by-step guide for draining and replacing the engine oil.

AIR CLEANER

Inspection

How to inspect the air filter element for dirt or damage.

Cleaning

Instructions on how to clean and service the air filter element.

SPARK PLUG

COOLING FINS

FUEL FILTER AND FUEL TANK

SPARK ARRESTER

HOT AIR TUBE REMOVAL/INSTALLATION

HELPFUL TIPS & SUGGESTIONS

STORING YOUR ENGINE

Preparation and procedures for storing the engine for extended periods.

Draining the Fuel Tank and Carburetor

Steps to drain fuel from the tank and carburetor for storage.

TRANSPORTING

TAKING CARE OF UNEXPECTED PROBLEMS

TECHNICAL & CONSUMER INFORMATION

Serial Number Location

Details on where to find and record serial numbers for warranty and parts.

Carburetor Modifications for High Altitude Operation

Procedures for adjusting the carburetor for optimal performance at high altitudes.

Emission Control System Information

Air Index

Specifications

Tuneup Specifications

Quick Reference Information

Wiring Diagrams

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