Checking The Front And Rear Brake Master; Cylinders - Yamaha YZ85W1 Service Manual

FRONT AND REAR BRAKES
EAS00592
CHECKING THE FRONT AND REAR BRAKE
MASTER CYLINDERS
The following procedure applies to the both of
the brake master cylinders.
1. Check:
• brake master cylinder
Damage / scratches / wear → Replace.
• brake fluid delivery passages
(brake master cylinder body)
Obstruction → Blow out with compressed
air.
Front
Rear
2. Check:
• brake master cylinder kit
Damage / scratches / wear → Replace.
Front
Rear
3. Check:
• rear brake fluid reservoir
Cracks / damage → Replace.
• rear brake fluid reservoir diaphragm
Cracks / damage → Replace.
4. Check:
• front brake master cylinder reservoir
Cracks/damage → Replace.
• front brake master cylinder reservoir dia-
phragm
Damage / wear → Replace.
5. Check:
• brake hoses
Cracks / damage / wear → Replace.
Refer to "CHECKING THE FRONT AND
REAR BRAKE HOSES" in chapter 3.
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CHAS