Table Of Contents; Introduction; Safety Messages - Honda GX25 Owner's Manual

INTRODUCTION

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 your servicing dealer.
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 the engine if resold.
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:
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.
CONTENTS
SAFETY LABEL LOCATION /
COMPONENT & CONTROL
LOCATION ........................... A-1
INTRODUCTION...................... 1
SAFETY MESSAGES .............. 1
SAFETY INFORMATION ......... 1
FEATURES............................... 1
BEFORE OPERATION
CHECKS ................................... 2
OPERATION............................. 2
SAFE OPERATING
PRECAUTIONS .................... 2
STARTING THE ENGINE ..... 2
SETTING ENGINE SPEED ... 3
STOPPING THE ENGINE ..... 3
SERVICING YOUR ENGINE .... 3
THE IMPORTANCE OF
MAINTENANCE ................... 3
MAINTENANCE SAFETY .... 3
SAFETY PRECAUTIONS...... 3
MAINTENANCE
SCHEDULE ........................... 4
REFUELING .......................... 4
ENGINE OIL.......................... 5
Recommended Oil ........... 5
Oil Level Check................. 5
Oil Change ........................ 5
AIR CLEANER....................... 5
Inspection ......................... 5
Cleaning............................ 5
SPARK PLUG ....................... 6
COOLING FINS .................... 6
ENGLISH
FUEL FILTER AND FUEL
TANK .................................... 7
SPARK ARRESTER .............. 7
HOT AIR TUBE REMOVAL/
INSTALLATION.................... 8
HELPFUL TIPS &
SUGGESTIONS....................... 8
STORING YOUR ENGINE ... 8
TRANSPORTING ................. 9
TAKING CARE OF
UNEXPECTED PROBLEMS .... 9
TECHNICAL & CONSUMER
INFORMATION...................... 10
Serial Number Location.... 10
Remote Control Linkage ... 10
Carburetor Modifications for
High Altitude Operation ...... 10
Emission Control System
Information ........................ 10
Air Index............................. 11
Specifications .................... 12
Tuneup Specifications ...... 12
Quick Reference
Information ........................ 12
Wiring Diagrams ............... 12
CONSUMER INFORMATION .... 13
Warranty and Distributor/
Dealer Locator
Information ........................ 13
Customer Service
Information ........................ 13

SAFETY MESSAGES

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.
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.
These signal words mean:
Each message tells you what the hazard is, what can happen,
and what you can do to avoid or reduce injury.
DAMAGE PREVENTION MESSAGES
You will also see other important messages that are preceded
by the word NOTICE.
This word means:
Your engine or other property can be damaged if
you don't follow instructions.
The purpose of these messages is to help prevent damage to
your engine, other property, or the environment.
SAFETY INFORMATION
• Understand the operation of all controls and learn how to stop
the engine quickly in case of emergency. Make sure the
operator receives adequate instruction before operating the
equipment.
• Do not allow children to operate the engine. Keep children
and pets away from the area of operation.
• Your engine's exhaust contains poisonous carbon monoxide.
Do not run the engine without adequate ventilation, and never
run the engine indoors.
• The engine and exhaust become very hot during operation.
Keep the engine at least 1 meter (3 feet) away from buildings
and other equipment during operation. Keep flammable
materials away, and do not place anything on the engine
while it is running.
FEATURES
Centrifugal Clutch
The centrifugal clutch automatically engages and transmits
power when engine speed is increased above approximately
-1
GX25/GX35: 4,200 min
At idle speed, the clutch is disengaged.
Do not run the engine without mounting it on equipment that
includes the centrifugal clutch drum and housing, or centrifugal
force will cause the clutch shoes to contact and damage the
engine case.
ENGLISH
You WILL be KILLED or SERIOUSLY
HURT if you don't follow
instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don't follow
instructions.
You CAN be HURT if you don't
follow instructions.
-1
(rpm), GX50: 4,400 min (rpm).
1