Yamaha WR450F 2-TRAC User Manual

1
CONTENTS
HYDROSTATIC TRANSMISSION .......................................................................................... 2
WHEN DRIVING .............................................................................................................. 2
FUNCTION ...................................................................................................................... 2
ADJUSTMENTS .............................................................................................................. 3
ALTERNATE RATIOS (OPTIONS) .................................................................................. 3
TOOLS ............................................................................................................................ 3
SPECIAL TOOLS .................................................................................................................. 4
SPECIFICATIONS .................................................................................................................. 6
GENERAL SPECIFICATIONS ........................................................................................ 6
MAINTENANCE SPECIFICATIONS ...................................................................................... 7
CHASSIS ........................................................................................................................ 7
TIGHTENING TORQUES ................................................................................................ 8
CABLE ROUTING DIAGRAM.......................................................................................... 9
REGULAR INSPECTION AND ADJUSTMENTS..................................................................17
MAINTENANCE INTERVALS ........................................................................................ 17
SUPPLEMENTARY INSPECTION AND ADJUSTMENTS ............................................ 17
HYDROSTATIC TRANSMISSION.................................................................................. 17
STEERING DAMPER ADJUSTMENT .......................................................................... 18
FRONT FORK REBOUND DAMPING FORCE ADJUSTMENT.................................... 21
FRONT FORK COMPRESSION DAMPING FORCE ADJUSTMENT .......................... 22
REAR SHOCK ABSORBER SPRING PRELOAD ADJUSTMENT ................................ 23
REAR SHOCK ABSORBER REBOUND DAMPING FORCE ADJUSTMENT .............. 24
REAR SHOCK ABSORBER LOW COMPRESSION DAMPING FORCE
ADJUSTMENT .............................................................................................................. 25
REAR SHOCK ABSORBER HIGH COMPRESSION DAMPING FORCE
ADJUSTMENT .............................................................................................................. 26
CARBURETOR DISASSEMBLY .......................................................................................... 27
TRANSMISSION .................................................................................................................. 28
DRIVE UNIT – TRANSMISSION ASSY ........................................................................ 28
HYDROSTATIC TRANSMISSION.................................................................................. 30
INSPECTION ................................................................................................................ 30
CHANGE OIL IN THE HYDRAULIC MOTOR REDUCTION GEAR HOUSING ............ 30
CHANGE OIL IN THE PUMP TRANSMISSION HOUSING .......................................... 31
CHECK THE WEAR IN THE PUMP TRANSMISSION.................................................. 32
CHANGING THE RATIOS FOR THE PUMP TRANSMISSION .................................... 33
FRONT WHEEL .................................................................................................................... 35
FRONT WHEEL REMOVAL .......................................................................................... 35
FRONT FORK ...................................................................................................................... 36
FRONT FORK DISASSEMBLY...................................................................................... 36
FRONT FORK SPECIFICATION CARD – ÖHLINS®.................................................... 38
OIL LEVEL ADJUSTMENT ............................................................................................ 39
CHANGING SPRINGS .................................................................................................. 40
DISMANTLING .............................................................................................................. 42
ASSEMBLING................................................................................................................ 45
REAR SHOCK ABSORBER ................................................................................................ 48
REAR SHOCK ABSORBER DISASSEMBLY ................................................................ 48
INSPECTION AND MAINTENANCE.............................................................................. 49
STEERING DAMPER .......................................................................................................... 50
DISASSEMBLY AND INSPECTION .............................................................................. 51

Yamaha WR450F 2-TRAC Specifications

General

Displacement	449cc
Compression Ratio	12.5:1
Transmission	5-speed
Final Drive	Chain
Front Tire	80/100-21
Engine Type	Liquid-cooled, 4-stroke, DOHC, 5-valve
Bore x Stroke	95.0mm x 63.4mm
Front Brake	Single disc
Rear Brake	Single disc