YFM7FGPW Service Manual

YFM7FGPW Service Manual
YFM7FGPW
SERVICE MANUAL
LIT-11616-20-11
3B4-28197-10
EBS00001
YFM7FGPW
SERVICE MANUAL
©2006 by Yamaha Motor Corporation, U.S.A.
First Edition, May 2006
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.
LIT-11616-20-11
EBS00002
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 maintenance and repairs on
Yamaha vehicle has a basic understanding of the mechanical ideas and the procedures of vehicle
repair. Repairs attempted by anyone without this knowledge are likely to render the vehicle 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
vehicle 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 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:
• This Service Manual contains information regarding periodic maintenance to the emission control
system. Please read this material carefully.
• Designs and specifications are subject to change without notice.
_
EBS00003
IMPORTANT INFORMATION
Particularly important information is distinguished in this manual by the following notations.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
WARNING
CAUTION:
NOTE:
Failure to follow WARNING instructions could result in severe injury or death to
the vehicle operator, a bystander or a person checking or repairing the vehicle.
A CAUTION indicates special precautions that must be taken to avoid damage
to the vehicle.
A NOTE provides key information to make procedures easier or clearer.
EBS00004
HOW TO USE THIS MANUAL
MANUAL ORGANIZATION
This manual consists of chapters for the main categories of subjects. (See “symbols”)
1st title 1: This is the title of the chapter with its symbol in the upper right corner of each page.
2nd title 2: 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 3: 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 4 is provided for removal and disassembly jobs.
2. Numbers 5 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
6. The meanings of the symbol marks are given on the next page.
4. A job instruction chart 7 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 8 are given in addition
to the exploded diagram and the job instruction chart.
1
EBS00006
2
GEN
INFO
SYMBOLS
The following symbols are not relevant to
every vehicle.
Symbols 1 to 0 indicate the subject of each
chapter.
SPEC
3
4
CHK
ADJ
1 General information
2 Specifications
3 Periodic checks and adjustments
4 Engine
5 Cooling system
6 Fuel injection system
7 Drive train
8 Chassis
9 Electrical
0 Troubleshooting
ENG
5
6
FI
COOL
7
8
CHAS
DRIV
9
0
–
ELEC
TRBL
SHTG
+
A
B
C
D
E
F
Symbols A to H indicate the following
A Can be serviced with engine mounted
B Filling fluid
C Lubricant
D Special tool
E Torque
F Wear limit, clearance
G Engine speed
H Electrical data (Ω, V, A)
T.
R.
G
H
I
J
Symbols I to N in the exploded diagrams
indicate the types of lubricants and lubrication
points.
K
G
E
L
M
M
B
N
M
LS
O
P
LT
New
I Apply engine oil
J Apply gear oil
K Apply molybdenum disulfide oil
L Apply wheel bearing grease
M Apply lithium-soap-based grease
N Apply molybdenum disulfide grease
Symbols O to P in the exploded diagrams
indicate where to apply a locking agent O and
when to install a new part P.
O Apply the locking agent (LOCTITE®)
P Replace
EBS00008
TABLE OF CONTENTS
GENERAL INFORMATION
SPECIFICATIONS
PERIODIC CHECKS AND
ADJUSTMENTS
ENGINE
COOLING SYSTEM
FUEL INJECTION SYSTEM
DRIVE TRAIN
CHASSIS
GEN
INFO
1
SPEC
2
CHK
ADJ
3
ENG
4
COOL
5
FI
6
DRIV
7
CHAS
8
–
ELECTRICAL
TROUBLESHOOTING
+
ELEC
9
TRBL
SHTG
10
CONTENTS
CHAPTER 1
GENERAL INFORMATION
VEHICLE IDENTIFICATION............................................................................1-1
VEHICLE IDENTIFICATION NUMBER .....................................................1-1
MODEL LABEL.......................................................................................... 1-1
FEATURES...................................................................................................... 1-2
OUTLINE OF THE FI SYSTEM.................................................................1-2
FI SYSTEM................................................................................................1-3
OUTLINE OF THE EPS (ELECTRIC POWER STEERING) SYSTEM...... 1-4
EPS (ELECTRIC POWER STEERING) SYSTEM BLOCK DIAGRAM ..... 1-5
INSTRUMENT FUNCTIONS ..................................................................... 1-6
IMPORTANT INFORMATION ......................................................................... 1-9
PREPARATION FOR REMOVAL AND DISASSEMBLY........................... 1-9
REPLACEMENT PARTS...........................................................................1-9
GASKETS, OIL SEALS AND O-RINGS .................................................... 1-9
LOCK WASHERS/PLATES AND COTTER PINS ................................... 1-10
BEARINGS AND OIL SEALS .................................................................. 1-10
CIRCLIPS ................................................................................................1-10
CHECKING THE CONNECTIONS.......................................................... 1-11
SPECIAL TOOLS .......................................................................................... 1-12
CHAPTER 2
SPECIFICATIONS
GENERAL SPECIFICATIONS ........................................................................ 2-1
ENGINE SPECIFICATIONS ............................................................................2-5
CHASSIS SPECIFICATIONS ........................................................................2-12
ELECTRICAL SPECIFICATIONS .................................................................2-14
TIGHTENING TORQUES .............................................................................. 2-16
ENGINE TIGHTENING TORQUES......................................................... 2-16
CHASSIS TIGHTENING TORQUES.......................................................2-19
HOW TO USE THE CONVERSION TABLE.................................................. 2-22
GENERAL TIGHTENING TORQUE SPECIFICATIONS...............................2-22
LUBRICATION POINTS AND LUBRICANT TYPES .................................... 2-23
ENGINE................................................................................................... 2-23
COOLANT FLOW DIAGRAMS ..................................................................... 2-25
OIL FLOW DIAGRAMS ................................................................................. 2-26
CABLE ROUTING ......................................................................................... 2-28
CHAPTER 3
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION.............................................................................................. 3-1
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL
SYSTEM ......................................................................................................... 3-1
GENERAL MAINTENANCE AND LUBRICATION CHART............................ 3-2
ENGINE SKID PLATES, SEAT, CARRIERS AND FENDERS .......................3-4
ENGINE SKID PLATES.............................................................................3-4
SEAT AND SIDE PANELS ........................................................................ 3-5
FRONT CARRIER AND FRONT GUARD ................................................. 3-6
FRONT FENDERS AND FRONT GRILL................................................... 3-8
REAR CARRIER AND REAR FENDER .................................................... 3-9
ELECTRICAL COMPONENTS TRAY........................................................... 3-10
ELECTRICAL COMPONENTS TRAY 1/2 ............................................... 3-10
ELECTRICAL COMPONENTS TRAY 2/2 ............................................... 3-12
FOOTREST BOARDS ...................................................................................3-14
AIR FILTER CASE ........................................................................................ 3-15
ENGINE .........................................................................................................3-16
ADJUSTING THE VALVE CLEARANCE ................................................ 3-16
ADJUSTING THE ENGINE IDLING SPEED ...........................................3-19
ADJUSTING THE THROTTLE LEVER FREE PLAY ..............................3-20
ADJUSTING THE SPEED LIMITER........................................................ 3-22
CHECKING THE SPARK PLUG ............................................................. 3-23
CHECKING THE IGNITION TIMING.......................................................3-24
MEASURING THE COMPRESSION PRESSURE..................................3-25
CHECKING THE ENGINE OIL LEVEL....................................................3-28
CHANGING THE ENGINE OIL ...............................................................3-29
CLEANING THE AIR FILTER ELEMENT................................................ 3-31
CHECKING THE THROTTLE BODY JOINT...........................................3-33
CHECKING THE FUEL HOSE ................................................................3-34
CHECKING THE BREATHER HOSES ...................................................3-34
CHECKING THE COOLANT LEVEL.......................................................3-35
CHANGING THE COOLANT................................................................... 3-35
CHECKING THE COOLING SYSTEM ....................................................3-39
CHECKING THE COOLANT TEMPERATURE WARNING LIGHT.........3-40
CHECKING THE V-BELT........................................................................3-41
CHECKING THE EXHAUST SYSTEM....................................................3-42
CLEANING THE SPARK ARRESTER ....................................................3-43
CHASSIS ....................................................................................................... 3-44
ADJUSTING THE FRONT BRAKE ......................................................... 3-44
ADJUSTING THE REAR BRAKE............................................................ 3-44
CHECKING THE BRAKE FLUID LEVEL................................................. 3-46
CHECKING THE FRONT BRAKE PADS ................................................ 3-47
CHECKING THE REAR BRAKE PADS .................................................. 3-48
CHECKING THE REAR BRAKE HOSE PROTECTORS ........................ 3-48
CHECKING THE BRAKE HOSES........................................................... 3-49
BLEEDING THE HYDRAULIC BRAKE SYSTEM ................................... 3-49
ADJUSTING THE SELECT LEVER CONTROL CABLE AND
SHIFT ROD ............................................................................................ 3-51
CHECKING THE FINAL GEAR OIL LEVEL ............................................3-53
CHANGING THE FINAL GEAR OIL........................................................ 3-53
CHECKING THE DIFFERENTIAL GEAR OIL LEVEL............................. 3-55
CHANGING THE DIFFERENTIAL GEAR OIL ........................................ 3-55
CHECKING THE CONSTANT VELOCITY JOINT DUST BOOTS ..........3-56
CHECKING THE STEERING SYSTEM .................................................. 3-57
ADJUSTING THE TOE-IN....................................................................... 3-59
CHECKING THE FRONT AND REAR SHOCK ABSORBERS ............... 3-60
ADJUSTING THE FRONT SHOCK ABSORBERS .................................3-61
ADJUSTING THE REAR SHOCK ABSORBERS.................................... 3-62
CHECKING THE TIRES..........................................................................3-62
CHECKING THE WHEELS ..................................................................... 3-65
CHECKING AND LUBRICATING THE CABLES .................................... 3-65
LUBRICATING THE LEVERS AND PEDALS .........................................3-66
ELECTRICAL SYSTEM................................................................................. 3-67
CHECKING AND CHARGING THE BATTERY....................................... 3-67
CHECKING THE FUSES ........................................................................3-73
ADJUSTING THE HEADLIGHT BEAMS................................................. 3-76
REPLACING THE HEADLIGHT BULBS ................................................. 3-76
CHAPTER 4
ENGINE
ENGINE REMOVAL ........................................................................................4-1
AIR DUCTS, MUFFLER AND EXHAUST PIPE ........................................ 4-1
SELECT LEVER UNIT ..............................................................................4-3
LEADS, CABLES AND HOSES ................................................................4-4
ENGINE MOUNTING BOLTS ...................................................................4-6
INSTALLING THE ENGINE....................................................................... 4-8
INSTALLING THE SELECT LEVER UNIT ................................................ 4-9
CYLINDER HEAD.......................................................................................... 4-10
REMOVING THE CYLINDER HEAD.......................................................4-12
CHECKING THE CAMSHAFT SPROCKET............................................4-13
CHECKING THE TAPPET COVERS ......................................................4-13
CHECKING THE TIMING CHAIN TENSIONER...................................... 4-13
CHECKING THE CYLINDER HEAD .......................................................4-14
INSTALLING THE CYLINDER HEAD .....................................................4-15
ROCKER ARMS AND CAMSHAFT ..............................................................4-18
REMOVING THE ROCKER ARMS AND CAMSHAFT............................ 4-20
CHECKING THE CAMSHAFT.................................................................4-20
CHECKING THE DECOMPRESSION SYSTEM..................................... 4-21
CHECKING THE ROCKER ARMS AND ROCKER ARM SHAFTS ........ 4-21
INSTALLING THE CAMSHAFT AND ROCKER ARMS .......................... 4-22
VALVES AND VALVE SPRINGS.................................................................. 4-25
REMOVING THE VALVES AND VALVE SPRINGS ...............................4-26
CHECKING THE VALVES AND VALVE SPRINGS ................................4-27
INSTALLING THE VALVES AND VALVE SPRINGS ..............................4-31
CYLINDER AND PISTON.............................................................................. 4-34
REMOVING THE PISTON ...................................................................... 4-35
CHECKING THE CYLINDER AND PISTON ...........................................4-35
CHECKING THE PISTON RINGS........................................................... 4-37
CHECKING THE PISTON PIN ................................................................4-38
INSTALLING THE PISTON AND CYLINDER .........................................4-39
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