Yamaha YZ450FX 2019 Owner's Service Manual page 127

GENERAL CHASSIS........................................................................................4-1
REMOVING THE SEAT..............................................................................4-3
REMOVING THE NUMBER PLATE ...........................................................4-3
INSTALLING THE AIR SCOOP..................................................................4-3
REMOVING THE SIDE COVER .................................................................4-4
INSTALLING THE SIDE COVER ...............................................................4-4
FRONT WHEEL ................................................................................................4-5
REMOVING THE FRONT WHEEL .............................................................4-6
CHECKING THE FRONT WHEEL .............................................................4-6
DISASSEMBLING THE FRONT WHEEL ...................................................4-7
ASSEMBLING THE FRONT WHEEL .........................................................4-7
INSTALLING THE FRONT WHEEL ...........................................................4-8
REAR WHEEL ..................................................................................................4-9
REMOVING THE REAR WHEEL .............................................................4-10
CHECKING THE REAR WHEEL ..............................................................4-10
DISASSEMBLING THE REAR WHEEL ...................................................4-10
CHECKING AND REPLACING THE REAR WHEEL SPROCKET...........4-10
ASSEMBLING THE REAR WHEEL .........................................................4-11
INSTALLING THE REAR WHEEL ............................................................4-11
FRONT BRAKE ..............................................................................................4-13
INTRODUCTION ......................................................................................4-17
CHECKING THE FRONT BRAKE DISC ..................................................4-17
REMOVING THE FRONT BRAKE CALIPER ...........................................4-17
DISASSEMBLING THE FRONT BRAKE CALIPER .................................4-17
CHECKING THE FRONT BRAKE CALIPER............................................4-18
ASSEMBLING THE FRONT BRAKE CALIPER .......................................4-18
INSTALLING THE BRAKE CALIPER PISTON.........................................4-18
INSTALLING THE FRONT BRAKE CALIPER..........................................4-19
REMOVING THE FRONT BRAKE MASTER CYLINDER ........................4-20
CHECKING THE FRONT BRAKE MASTER CYLINDER .........................4-20
ASSEMBLING THE FRONT BRAKE MASTER CYLINDER.....................4-20
INSTALLING THE FRONT BRAKE MASTER CYLINDER .......................4-21
REAR BRAKE ................................................................................................4-23
INTRODUCTION ......................................................................................4-27
CHECKING THE REAR BRAKE DISC .....................................................4-27
REMOVING THE REAR BRAKE CALIPER .............................................4-28
DISASSEMBLING THE REAR BRAKE CALIPER....................................4-28
CHECKING THE REAR BRAKE CALIPER ..............................................4-28
ASSEMBLING THE REAR BRAKE CALIPER..........................................4-28
INSTALLING THE BRAKE CALIPER PISTON.........................................4-29
INSTALLING THE REAR BRAKE CALIPER ............................................4-29
REMOVING THE REAR BRAKE MASTER CYLINDER...........................4-30
CHECKING THE REAR BRAKE MASTER CYLINDER ...........................4-30
ASSEMBLING THE REAR BRAKE MASTER CYLINDER .......................4-31
CHASSIS
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