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Yamaha yz450f 2012 Service Manual

Yamaha yz450f 2012
230 pages
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CONTENTS
CHAPTER 1
GENERAL
INFORMATION
LOCATION OF
IMPORTANT LABELS ..... 1-1
DESCRIPTION ................. 1-5
CONSUMER
INFORMATION................. 1-6
FEATURES....................... 1-7
INCLUDED PARTS .......... 1-9
IMPORTANT
INFORMATION................. 1-9
HANDLING THE
ELECTRONIC PARTS ... 1-10
CHECKING OF
CONNECTION................ 1-10
SPECIAL TOOLS........... 1-12
CONTROL
FUNCTIONS................... 1-17
STARTING
AND BREAK-IN.............. 1-17
TORQUE-CHECK
POINTS........................... 1-19
CLEANING
AND STORAGE ............. 1-20
CHAPTER 2
SPECIFICATIONS
GENERAL
SPECIFICATIONS............ 2-1
MAINTENANCE
SPECIFICATIONS............ 2-3
TIGHTENING
TORQUES ...................... 2-11
LUBRICATION
DIAGRAMS .................... 2-17
CABLE ROUTING
DIAGRAM....................... 2-18
CHAPTER 3
REGULAR
INSPECTION AND
ADJUSTMENTS
MAINTENANCE
INTERVALS......................3-1
PRE-OPERATION
INSPECTION
AND MAINTENANCE.......3-5
ENGINE ............................3-6
CHASSIS ........................3-14
ELECTRICAL .................3-24
CHAPTER 4
ENGINE
SEAT
AND SIDE COVERS.........4-1
EXHAUST PIPE
AND SILENCER ...............4-3
RADIATOR .......................4-7
CAMSHAFTS..................4-10
CYLINDER HEAD...........4-15
VALVES AND
VALVE SPRINGS ...........4-19
CYLINDER
AND PISTON ..................4-23
CLUTCH .........................4-27
OIL FILTER ELEMENT
AND WATER PUMP.......4-31
BALANCER ....................4-35
OIL PUMP.......................4-37
KICK SHAFT
AND SHIFT SHAFT ........4-40
AC MAGNETO................4-45
ENGINE REMOVAL .......4-47
CRANKCASE
AND CRANKSHAFT ......4-52
TRANSMISSION,
SHIFT CAM
AND SHIFT FORK..........4-58
CHAPTER 5
CHASSIS
FRONT WHEEL
AND REAR WHEEL .........5-1
FRONT BRAKE
AND REAR BRAKE..........5-6
FRONT FORK.................5-16
HANDLEBAR..................5-24
STEERING ......................5-28
SWINGARM ....................5-32
REAR
SHOCK ABSORBER......5-37
CHAPTER 6
FUEL SYSTEM
FUEL TANK ......................6-1
THROTTLE BODY............6-4
CHAPTER 7
ELECTRICAL
ELECTRICAL
COMPONENTS AND
WIRING DIAGRAM...........7-1
IGNITION SYSTEM...........7-3
THROTTLE POSITION
SENSOR SYSTEM ...........7-6
FUEL INJECTION
SYSTEM............................7-9
FUEL PUMP SYSTEM....7-35
ELECTRICAL
COMPONENTS...............7-36
CHAPTER 8
TUNING
CHASSIS ..........................8-1

Table of Contents

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Yamaha yz450f 2012 Specifications

General IconGeneral
Bore x Stroke97.0mm x 60.8mm
Compression Ratio12.5:1
Fuel DeliveryFuel Injection
Transmission5-speed
Final DriveChain
Tires Front80/100-21
Tires Rear120/80-19
Wheelbase58.7 in
Trail4.6 in
Fuel Capacity1.6 gal
Wet Weight245 lb
Engine TypeLiquid-cooled, 4-stroke, DOHC, 4-valve
IgnitionTCI
Suspension FrontTelescopic fork, 12.2 in travel
Suspension RearSwingarm, 12.4 in travel
Brakes FrontHydraulic single disc brake, 250mm
Brakes RearSingle disc, 245 mm

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