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1998-2001 Yamaha Grizzly 600 Repair Manual
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_YAMAHA
YFM600
Grizzly
oBervice Manual
~~ ~
358+1

YAMAHA
LIT·11616·11·02

YFM600FWAK
SERVICE MANUAL
© 1997 by Yamaha Motor Corporation, U.S.A.
First Edition, April 1997
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.
LlT-11616-11-02

EB001000
NOTICE
This manual was produced by the Yamaha Motor Company primarily for use by Yamaha
dealers and their qualified mechanics. It is not possible to include all the knowledge of a
mechanic in one manual, so it is assumed that anyone who uses this book to perform main-
tenance and repairs on Yamaha machine has a basic understanding of the mechanical ideas
and the procedures of machine repair. Repairs attempted by anyone without this knowledge
are likely to render the machine unsafe and unfit for use.
Yamaha Motor Company, Ltd. is continually striving to improve all its models. Modifications
and significant changes in. specifications or procedures will be forwarded to all authorized
Yamaha dealers and will appear in future editions of this manual where applicable.
NOTE: ______________________________________________________ ___
Designs and specifications are subject to change without notice.
IMPORTANT INFORMATION
Particularly important information is distinguished in this manual by the following notations.
A WARNING
NOTE:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
Failure to follow WARNING instructions could result in severe injury or
death to the machine operator, a bystander or a person inspecting or
repairing the machine.
A CAUTION indicates special precautions that must be taken to avoid
damage to the machine.
A NOTE provides key information to make procedures easier or clearer.

EB002000
HOW TO USE THIS MANUAL
MANUAL ORGANIZATION
This manual consists of chapters for the main categories of subjects. (See "illustrated sym-
bols")
1st title CD: This is the title of the chapter with its symbol in the upper right corner of each
page.
2nd title ®: This title indicates the section of the chapter and only appears on the first page of
each section. It is located in the upper left corner of the page.
3rd title @: This title indicates a sub-section that is followed by step-by-step procedures
accompanied by corresponding illustrations.
EXPLODED DIAGRAMS
To help identify parts and clarify procedure steps, there are exploded diagrams at the start of
each removal and disassembly section.
1. An easy-to-see exploded diagram @ is provided for removal and disassembly jobs.
2. Numbers ® are given in the order of the jobs in the exploded diagram. A number that is
enclosed by a circle indicates a disassembly step.
3. An explanation of jobs and notes is presented in an easy-to-read way by the use of symbol
marks @. The meanings of the symbol marks are given on the next page. .
4. A job instruction chart (j) accompanies the exploded diagram, providing the order of jobs,
names of parts, notes in jobs, etc.
5. For jobs requiring more information, the step-by-step format supplements @ are given in
addition to the exploded diagram and the job instruction chart.
CLUTCH ~
A
/
/1
1-:; 1
Pr,maryandsecond3ryshellyes
CLUTCH
CLUTCH REMOVAl
'Remove:
• Clu!chhousong,S&embly
.G.Pet
• Qowelpms
:'~~Il~~·"7i"-=C;$5(:='~-' ,.= ... -'-,.,. J'-~M-" • ...,,- .. ,
bolt 1/. of lurn. Remove them .fter att 01
2.Straighten
• Punched porttonof Ihenul(i)
3.Remove:
eNut(D
~~T~: c=lutC:C-::"=Oldin=, '=~'-;;;-(j) ,::-":, ,=".=",
clutchcarrie,assem\)ly
~Clutc:hhcUdlngt~: I
~ P/N.YM-"042,90890-04086 .
CLUTCH INSPECTION
lln~ec:t·
• Clutch housil'lg(D
He&tdamage/wearJdamage ..... Replace .
• One-way clutCh bearing(i)
Chafong/we,rfdamage ... Replace
~~:~~="'=""="='''=Iutch= .. = .. m=blya=".
clutch housing asa sel.
.The one-way Clutch bearing must be
installe<!w'th the ftanges!delacino in
Clutchopef.tlon:
.In$l.lt the one·way clutch bearing .ntl
cluo::thcaHierassemblytothaclucthhous·
,ng and hold Iheclutch carner assembly .
• When tum,ng the Clutch hOUSIng clock·
w,se @. the Clutch housing should tum
trealy
II not, the one-way clutch assembly,s
laulty
Replace,!.
.When lurn,ng the clutCh housing counter·
clockwiH' !Il. the clutch houSIng and
crank$halt Should beengllged
II not, the one,wllY Clutch assembly,s
faullY
Repllce,!

CD ®
11~~~14te1
ISPECI ~ I
@ @
II:gs 14fil1
ENG
<I
'®.
® ®
ICARBI Ii' I
IDRIVI*~1
(j)
®
ICHASldsOl IELECIOI
®
@
IJ~~~ ? I
~
®
ro1
@
El
@
~
@)
~
@~@§@~
@) @)
®
1 1 1
m ~ Gl
®
@ @
~ ..... ~
@
®
A
~
EB003000
ILLUSTRATED SYMBOLS
Illustrated symbols CD to ® are printed on
the top right of each page and indicate the
subject of each chapter.
CD General information
® Specifications
@ Periodic inspections and adjustments
@Engine
® Carburetion
® Drive train
(j) Chassis
® Electrical
® Troubleshooting
Illustrated symbols ® to ® are used to
identify the specifications appearing in the
text.
@ Can be serviced with engine mounted
® Filling fluid
@ Lubricant
@ Special tool
@)Torque
@ Wear limit, clearance
@) Engine speed
@Q,V,A
Illustrated symbols (j]) to ® in the exploded
diagrams indicate the types of lubricants
and lubrication points.
@) Apply engine oil
@) Apply gear oil
® Apply molybdenum disulfide oil
® Apply wheel bearing grease
@ Apply lightweight lithium-soap base grease
@ Apply molybdenum disulfide grease
Illustrated symbols ~ to @ in the exploded
diagrams indicate where to apply a locking
agent ® and when to install a new part @.
@ Apply the locking agent (LOCTITE@)
® Replace

CHAPTER TITLES
GENERAL INFORMATION
SPECIFICATIONS
PERIODIC INSPECTION AND
ADJUSTMENT
ENGINE OVERHAUL
CARBURETION
DRIVE TRAIN
CHASSIS
ELECTRICAL
TROUBLESHOOTING
CHAS
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CONTENTS
CHAPTER 1.
GENERAL INFORMATION
MACHINE IDENTIFICATION ........................................................................ 1-1
VEHICLE IDENTIFICATION NUMBER ................................................. 1-1
MODEL LABEL ..................................................................................... 1-1
FEATURES .................................................................................................... 1-2
IMPORTANT INFORMATION ...................................................................... 1-7
PREPARATION FOR REMOVAL PROCEDURES ................................. 1-7
REPLACEMENT PARTS ....................................................................... 1-7
GASKETS, OIL SEALS AND O-RINGS ................................................ 1-7
LOCK WASHERS/PLATES AND COTTER PINS .................................. 1-8
BEARINGS AND OIL SEALS ................................................................ 1-8
CIRCLIPS ............................................................................................... 1-8
CHECKING OF CONNECTIONS ................................................................... 1-9
SPECIAL TOOLS ........................................................................................ 1-10
CHAPTER 2.
SPECIFICATIONS
GENERAL SPECIFICATIONS ....................................................................... 2-1
MAINTENANCE SPECIFICATIONS ............................................................. 2-4
ENGINE ................................................................................................. 2-4
CHASSIS ............................................................................................. 2-14
ELECTRICAL ....................................................................................... 2-18
HOW TO USE THE CONVERSION TABLE ................................................ 2-20
GENERAL TORQUE SPECIFICATIONS ..................................................... 2-20
LUBRICATION POINTS AND LUBRICANT TYPES ................................... 2-21
ENGINE ............................................................................................... 2-21
LUBRICATION DIAGRAMS ....................................................................... 2-22
CABLE ROUTING ....................................................................................... 2-25
CHAS
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CHAPTER 3.
PERIODIC INSPECTIONS AND ADJUSTMENTS
INTRODUCTION ........................................................................................... 3-1
PERIODIC MAINTENANCE/LUBRICATION INTERVALS ........................... 3-1
SEAT, CARRIERS, FENDERS AND FUEL TANK ......................................... 3-3
SEAT ..................................................................................................... 3-3
FRONT CARRIER, FRONT BUMPER AND FRONT FENDER .............. 3-4
REAR CARRIER AND REAR FENDER .................................................. 3-5
FUEL TANK ........................................................................................... 3-6
ENGINE ......................................................................................................... 3-7
VALVE CLEARANCE ADJUSTMENT .................................................. 3-7
TIMING CHAIN ADJUSTMENT ......................................................... 3-10
IDLING SPEED ADJUSTMENT .......................................................... 3-10
THROTILE LEVER FREE PLAY ADJUSTMENT ................................ 3-11
SPEED LIMITER ADJUSTMENT ........................................................ 3-13
SPARK PLUG INSPECTION .................................................... :.......... 3-14
IGNITION TIMING CHECK ................................................................. 3-15
COMPRESSION PRESSURE MEASUREMENT ................................ 3-16
ENGINE OIL LEVEL INSPECTION ..................................................... 3-17
OIL TEMP WARNING LIGHT CHECK ................................................ 3-18
ENGINE OIL REPLACEMENT ............................................................ 3-19
AIR FILTER CLEANING ...................................................................... 3-20·
V-BELT INSPECTION ......................................................................... 3-22
CHASSIS ..................................................................................................... 3-24
FRONT BRAKE ADJUSTMENT ......................................................... 3-24
REAR BRAKE LEVER AND PEDAL ADJUSTMENT .......................... 3-24
FRONT BRAKE FLUID LEVEL INSPECTION ..................................... 3-26
FRONT BRAKE PAD INSPECTION .................................................... 3-27
REAR BRAKE SHOE INSPECTION .................................................... 3-27
BRAKE HOSE INSPECTION ............................................................... 3-28
AIR BLEEDING (HYDRAULIC BRAKE SYSTEM) .............................. 3-28
SELECT LEVER CONTROL CABLE AND SHIFT ROD
ADJUSTMENT ................................................................................ 3-30
FINAL GEAR OIL LEVEL INSPECTION .............................................. 3-31
FINAL GEAR REPLACEMENT ............................................................ 3-31
DIFFERENTIAL GEAR OIL REPLACEMENT ...................................... 3-32
CONSTANT VELOCITY JOINT DUST BOOT INSPECTION ............. 3-33
STEERING SYSTEM INSPECTION .................................................... 3-33
TOE-IN ADJUSTMENT ...................................................................... 3-34
REAR SHOCK ABSORBER ADJUSTMENT ....................................... 3-36
TIRE INSPECTION .............................................................................. 3-36
WHEEL INSPECTION ......................................................................... 3-38
CABLE INSPECTION AND LUBRICATION ........................................ 3-39
LEVERS, PEDAL, ETC. LUBRICATION .............................................. 3-39

ELECTRICAL ............................................................................................... 3-40
BATTERY INSPECTION ..................................................................... 3-40
FUSE INSPECTION ............................................................................ 3-45
HEADLIGHT BEAM ADJUSTMENT .................................................. 3-47
HEADLIGHT BULB REPLACEMENT .................................................. 3-47
CHAPTER 4.
ENGINE
ENGINE REMOVAL ...................................................................................... 4-1
AIR DUCTS, MUFFLER, EXHAUST PIPE, AND FOOTLEST
BOARD (right) .................................................................................... 4-1
SELECT LEVER UNIT AND FOOTREST BOARD (left) ......................... 4-2
HOSES AND LEADS ............................................................................ 4-3
ENGINE MOUNTING BOLTS .............................................................. 4-4
CYLINDER HEAD COVER ............................................................................ 4-6
CYLINDER HEAD COVER REMOVAL .................................................. 4-7
CYLINDER HEAD COVER INSPECTION .............................................. 4-7
TAPPET COVER INSPECTION ............................................................. 4-7
CYLINDER HEAD COVER INSTALLATION ......................................... 4-8
ROCKER ARMS ............................................................................................ 4-9
ROCKER ARM REMOVAL .................................................................. 4-10
ROCKER ARM AND CAMSHAFT INSPECTION ................................ 4-10
ROCKER ARM INSTALLATION ......................................................... 4-11
CAMSHAFT AND CYLINDER HEAD .......................................................... 4-12
CAMSHAFT AND CYLINDER HEAD REMOVAL .............................. .4-14
CAMSHAFT INSPECTION .................................................................. 4-15
CAMSHAFT SPROCKET INSPECTION .............................................. 4-15
DECOMPRESSION SYSTEM INSPECTION ...................................... 4-15
TIMING CHAIN GUIDE INSPECTION ................................................ 4-16
TIMING CHAIN TENTIONER INSPECTION ....................................... 4-16
CYLINDER HEAD INSPECTION ......................................................... 4-16
CAMSHAFT AND CYLINDER HEAD INSTALLATION ..................... .4-17
VALVES AND VALVE SPRINGS ............................................................... 4-20
VALVE AND VALVE SPRING REMOVAL .......................................... 4-21
VALVE AND VALVE SPRING INSPECTION ...................................... 4-21
VALVE AND VALVE SPRING INSTALLATION ................................. 4-26
CYLINDER AND PISTON ........................................................................... 4-27
PISTON REMOVAL ............................................................................ 4-28
CYLINDER AND PISTON INSPECTION ............................................. 4-28
PISTON RING INSPECTION .............................................................. 4-30
PISTON PIN INSPECTION ................................................................. 4-31
CHAS
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$28.99
This repair manual for the 1998-2001 Yamaha Grizzly 600 (YFM600) ATV provides comprehensive instructions for maintaining, fixing, troubleshooting, and overhauling the vehicle to factory specifications. It is an essential resource for both professional mechanics and DIY enthusiasts.
Upon payment, the manual is instantly delivered to your computer, providing immediate access to a wealth of maintenance and repair information, including an advanced troubleshooting guide.
Models Covered:
- 1998-2001 Yamaha Grizzly 600
Questions and Answers:
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A. Simply click on the purchase button, complete the payment, and a download link is sent to your computer in seconds for instant access. - Q. Once I download the repair manual how long do I have access to the manual?
A. Once downloaded, you can store the manual on your computer indefinitely and refer to it whenever maintenance and repair are necessary. - Q. How does the manual appear?
A. Once downloaded, the manual appears exactly the same as a repair manual you would buy in stores, including step-by-step repair procedures, pictures, illustrations, diagrams, troubleshooting, and specifications. - Q. Is the repair manual model and year specific?
A. Yes! This is not a generic manual. - Q. Does my computer need special software to view the manual?
A. Your computer won't need any special software to view the manual. It is a simple PDF manual. All computers come with the necessary software already installed from the manufacturer to view the manual. - Q. Will the manual hurt my computer?
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