Repair & Service Manual
Service Manual
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YFM70KDXH/YFM70KDHH/
YFM70KPXH/YFM70KPAH/
YFM70KPHH/YFM70KPSH
SERVICE MANUAL
©2016 by Yamaha Motor Corporation, U.S.A.
First edition, June 2016
All rights reserved.
Any reproduction or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in U.S.A.
eBs20009
IMPORTANT
This manual was produced by the Yamaha Motor Company, Ltd. primarily for use by Yamaha dealers
and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one man-
ual. Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehicles
should have a basic understanding of mechanics and the techniques to repair these types of vehicles.
Repair and maintenance work attempted by anyone without this knowledge is likely to render the vehi-
cle unsafe and unfit for use.
This model has been designed and manufactured to perform within certain specifications in regard to
performance and emissions. Proper service with the correct tools is necessary to ensure that the vehi-
cle will operate as designed. If there is any question about a service procedure, it is imperative that you
contact a Yamaha dealer for any service information changes that apply to this model. This policy is
intended to provide the customer with the most satisfaction from his vehicle and to conform to federal
environmental quality objectives.
Yamaha Motor Company, Ltd. is continually striving to improve all of its models. Modifications and sig-
nificant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers and
will appear in future editions of this manual where applicable.
TIP
* This Service Manual contains information regarding periodic maintenance to the emission control sys-
tem. Please read this material carefully.
* Designs and specifications are subject to change without notice.
EBS20001
IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations.
This is the safety alert symbol. It is used to alert you to potential personal
a injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
A WARNING indicates a hazardous situation which, if not avoided, could re-
A WARNING sult in death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid dam-
NOTICE age to the vehicle or other property.
TIP A TIP provides key information to make procedures easier or clearer.
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HOW TO USE THIS MANUAL
This manual is intended as a handy, easy-to-read reference book for the mechanic. Comprehensive
explanations of all installation, removal, disassembly, assembly, repair and check procedures are laid
out with the individual steps in sequential order.
* The manual is divided into chapters and each chapter is divided into sections. The current section title
“1” is shown at the top of each page.
* Sub-section titles “2” appear in smaller print than the section title.
* To help identify parts and clarify procedure steps, there are exploded diagrams “3” at the start of each
removal and disassembly section.
* Numbers “4” are given in the order of the jobs in the exploded diagram. A number indicates a disas-
sembly step.
* Symbols “5” indicate parts to be lubricated or replaced.
Refer to “SYMBOLS”.
« A job instruction chart “6” accompanies the exploded diagram, providing the order of jobs, names of
parts, notes in jobs, etc. This step explains removal and disassembly procedure only. For installation
and assembly procedure, reverse the steps.
* Jobs “7” requiring more information (such as special tools and technical data) are described sequen-
tially.
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SYMBOLS
The following symbols are used in this manual for easier understanding.
TIP
The following symbols are not relevant to every vehicle.
SYMBOL
DEFINITION SYMBOL DEFINITION
0%)
Serviceable with engine mounted
Gear oil
Dp |B |H—
Filling fluid Molybdenum disulfide oil
Lubricant Brake fluid
Special tool =a5P4 Wheel bearing grease
Tightening torque Lithium-soap-based grease
Wear limit, clearance Molybdenum disulfide grease
Engine speed
Silicone grease
Electrical data
Apply locking agent (LOCTITE®).
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Engine oil
Replace the part with a new one.
~ TABLE OF CONTENTS
GENERAL INFORMATION
SPECIFICATIONS
PERIODIC CHECKS AND
ADJUSTMENTS
CHASSIS
ENGINE
COOLING SYSTEM
FUEL SYSTEM
DRIVE TRAIN
ELECTRICAL SYSTEM
TROUBLESHOOTING
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IDENTIFICATION
VEHICLE IDENTIFICATION NUMBER.
MODEL LABEL ivsicsssisarsossses
FEATURES..
OUTLINE THE EPS (ELECTRIC POWER STEERING) SYSTEM
(for EPS models)
INSTRUMENT FUNCTIONS.
IMPORTANT INFORMATION ....
PREPARATION FOR REMO)
REPLACEMENT PARTS .......... c:eeeee
GASKETS, OIL SEALS AND O-RINGS .
LOCK WASHERS/PLATES AND COTTER PINS
BEARINGS AND OIL SEALS
CIRCLIPS ..........
RUBBER PARTS.
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BASIC SERVICE INFORMATION
QUICK FASTENERS
ELECTRICAL SYST!
SPECIAL TOOLS sicssczvsscasescssscusesarssetnsstaseansneraseriiereestivacsiosswsssiosrsvasiecsessasiees 1-14
IDENTIFICATION
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VEHICLE IDENTIFICATION NUMBER
The vehicle identification number “1” is stamped
into the frame.
MODEL LABEL
The model label “1” is affixed at the location in
the illustration. This information will be needed to
order spare parts.
1-1
IDENTIFICATION
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