ENGINES’
Owner’sManual
GX610

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GX620

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Keep this owner’s manual handy, so you can refer to it at any time.
This owner’s manual is considered a permanent part of the engine and should remain with the engine if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations are based on the GX610-QZE type. Honda Motor Co., Ltd. reserves the right, however, to discontinue or change specifications or design at any time without notice and without incurring any obligation whatever. No part of this publication may be reproduced without written permission.

INTRODUCTION
Congratulations on your selection of a Honda engine. We are certain you will be pleased with your purchase of one of the finest engines on the market.
We want to help you get the best results from your new engine and to operate it safely. This manual contains the information on how to do that; please read it carefully.
As you read this manual, you will find information preceded by a -1 symbol. That information is intended to help you avoid damage to your engine, other property, or the environment.
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.
When your engine needs scheduled maintenance, keep in mind that your
Honda servicing dealer is specially trained in servicing Honda engines. Your
Honda servicing dealer is dedicated to your satisfaction and will be pleased to answer your questions and concerns.

Best Wishes,
Honda Motor Co., Ltd.

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INTRODUCTION
A FEW WORDS ABOUT SAFETY
Your safety and the safety of others are very important. And using this engine safely is an important responsibility.
To help you make informed decisions about safety, we have provided operating procedures and other information on labels and in this manual. This information alerts you to potential hazards that could hurt you or others.
Of course, it is not practical or possible to warn you about all the hazards associated with operating or maintaining an engine. You must use your own good judgment.
You will find important safety information in a variety of forms, including:
Safety Labels -

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on the engine.

Safety Messages - preceded by a safety alert symbol A and one of three signal words, DANGER, WARNING, or CAUTION.
These signal words mean:
B

You WILL be KILLED or SERIOUSLY HURT if you don’t follow instructions. m

You CAN be KILLED or SERIOUSLY HURT if you don’t follow instructions. m

You CAN be HURT if you don’t follow instructions.
SAFETY INFORMATION.

Safety Headings

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Safety Section

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Instructions

how to use this engine correctly and safely.

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such as IMPORTANT

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such as ENGINE SAFETY.

This entire book is filled with important safety information carefully.

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please read it

CONTENTS
ENGINE SAFETY ......................................................................................
IMPORTANT SAFETY INFORMATION ................................................

.5
.5

CONTROLS & FEATURES .......................................................................
COMPONENT & CONTROL LOCATIONS ...........................................
CONTROLS ..........................................................................................
Engine Switch ..................................................................................
Choke Knob.. ...................................................................................
Throttle Lever ..................................................................................
Recoil Starter Grip.. .........................................................................
FEATURES