Yamaha 2003 YZ450F, Owner'S Service Manual

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5 - 14
CHAS
FRONT BRAKE AND REAR BRAKE
EC5A3000
REMOVAL POINTS
Brake fluid
1. Remove:
[Front]
●
Master cylinder cap 1
[Rear]
●
Master cylinder cap 1
●
Protector
NOTE:
Do not remove the diaphragm.
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Front
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Rear
2. Connect the transparent hose
2
to the
bleed screw
1
and place a suitable con-
tainer under its end.
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Front
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Rear
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3. Loosen the bleed screw and drain the
brake fluid while pulling the lever in or
pushing down on the pedal.
ACHTUNG:
CAUTION:
●
Do not reuse the drained brake fluid.
●
Brake fluid may erode painted surfaces or
plastic parts. Always clean up spilled
fluid immediately.
EC533301
Caliper piston
1. Remove:
●
Caliper piston
Use compressed air and proceed care-
fully.
WARNING
●
Cover piston with rag and use extreme
caution when expelling piston from cylin-
der.
●
Never attempt to pry out piston.
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Front
ı
Rear
Caliper piston removal steps:
●
Insert a piece of rag into the caliper to lock
one caliper.
●
Carefully force the piston out of the caliper
cylinder with compressed air.
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