Honda GX100 User Manual

ENGLISHFRANÇAISESPAÑOL
ENGLISH 1
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 an authorized Honda 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.
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.
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 entire book is filled with important safety information – please read
it carefully.
©
2019 Honda Motor Co., Ltd. –All Rights Reserved
GX100T
37ZDD602
00X37-ZDD-6020
OWNER’S MANUAL
MANUEL DE L’UTILISATEUR
MANUAL DEL PROPIETARIO
GX100
CONTENTS
These signal words mean:
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.
This word means:
Your engine, other property, or the environment can be
damaged if you do not follow instructions.
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects
or other reproductive harm.
INTRODUCTION....................................1
SAFETY MESSAGES..............................1
SAFETY INFORMATION......................2
SAFETY LABEL LOCATION ................2
COMPONENT & CONTROL
LOCATIONS............................................3
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..................6
MAINTENANCE SCHEDULE..........7
REFUELING ........................................7
ENGINE OIL........................................8
Recommended Oil.....................8
Oil Level Check............................8
Oil Change ....................................8
AIR CLEANER .................................... 9
Inspection..................................... 9
Cleaning ........................................ 9
SPARK PLUG ...................................10
SPARK ARRESTER..........................10
HELPFUL TIPS &
SUGGESTIONS ....................................11
STORING YOUR ENGINE .............11
TRANSPORTING.............................12
TAKING CARE OF UNEXPECTED
PROBLEMS...........................................12
TECHNICAL INFORMATION ...........13
Serial Number Location .............13
Carburetor Modifications for
High Altitude Operation ............13
Emission Control System
Information.....................................13
Air Index...........................................14
Specifications.................................15
Tuneup Specifications................15
Quick Reference
Information.....................................15
Wiring Diagrams...........................15
CONSUMER INFORMATION...........16
Distributor/Dealer Locator
Information.....................................16
Customer Service
Information.....................................16
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Honda GX100 Specifications

General

Bore x Stroke	56 mm x 40 mm
Compression Ratio	8.5:1
PTO Shaft Rotation	Counterclockwise (from PTO shaft side)
Ignition System	Transistorized magneto ignition
Starting System	Recoil starter
Lubrication System	Forced splash
Engine Type	4-stroke
Displacement	98 cm3

Summary

Safety Label Location

Warning Label

Details the warning labels for EU and Except EU regions.

Muffler Caution Label

Details the caution labels for mufflers in EU and Except EU regions.

Features

Oil Alert System

Explains the Oil Alert system designed to prevent engine damage.

Before Operation Checks

Check the General Condition of the Engine

Lists checks for the engine's general condition, leaks, dirt, and damage.

Check the Engine

Details checks for fuel level, oil level, and air filter.

Operation

Safe Operating Precautions

Provides crucial safety precautions for engine operation.

Carbon Monoxide Hazards

Warns about the dangers of carbon monoxide gas.

Starting the Engine

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

Setting Engine Speed

Explains how to position the throttle lever for desired engine speed.

Stopping the Engine

Provides the procedure for safely stopping the engine.

Servicing Your Engine

The Importance of Maintenance

Emphasizes why regular maintenance is crucial for engine performance and safety.

Maintenance Safety

Outlines critical safety precautions to follow during maintenance.

Safety Precautions

Lists essential safety measures to prevent hazards during servicing.

Maintenance Schedule

Presents the schedule for regular engine maintenance tasks.

Refueling

Details recommended fuel types and safe refueling practices.

Engine Oil

Details recommended oil, level check, and change procedures.

Air Cleaner

Covers air cleaner inspection and cleaning procedures.

Spark Plug

Details spark plug inspection, gapping, and installation.

Spark Arrester

Information on spark arrester removal, cleaning, and inspection.

Helpful Tips & Suggestions

Storing Your Engine

Guidance on preparing the engine for long-term storage.

Draining the Fuel Tank and Carburetor

Instructions for draining fuel systems to prevent deterioration.

Storage Precautions

Important precautions when storing the engine with or without fuel.

Transporting

Guidelines for safely transporting the engine.

Taking Care of Unexpected Problems

Engine Will Not Start

Troubleshooting steps for when the engine fails to start.

Engine Lacks Power

Troubleshooting steps for when the engine has reduced power.

Technical Information

Serial Number Location

Where to find and record engine serial numbers for reference.

Carburetor Modifications for High Altitude Operation

Details on adjusting the carburetor for high altitude performance.

Emission Control System Information

Information on emission control systems and their warranty.

Maintenance

Owner's responsibility for engine maintenance related to emissions.

Air Index

Explanation of the Air Index Information tag and its meaning.

Problems That May Affect Emissions

Symptoms indicating potential emission control system issues.

Replacement Parts

Guidance on using genuine and aftermarket replacement parts.

Specifications

Provides detailed physical and performance specifications for the engine.

Tuneup Specifications

Lists specific tuning parameters like spark plug gap and idle speed.

Quick Reference Information

A summary table linking key items to relevant pages for quick access.

Wiring Diagrams

Illustrates wiring configurations for engines with and without Oil Alert.

Consumer Information

Distributor/Dealer Locator Information

Information on how to find authorized dealers and distributors.

Customer Service Information

Steps to resolve issues and contact Honda for customer support.