Removing The Front Brake Master Cylinder; Checking The Front Brake Master Cylinder - Yamaha 2009 Diversion XJ6S Service Manual

deteriorate, causing leakage and poor
brake performance.
Refill with the same type of brake fluid that
G
is already in the system. Mixing brake flu-
ids may result in a harmful chemical reac-
tion, leading to poor brake performance.
When refilling, be careful that water does
G
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
ECA13540
NOTICE
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean up
any spilt brake fluid immediately.
4. Bleed:
Brake system
G
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-14.
5. Check:
Brake fluid level
G
Below the minimum level mark "c" → Add the
recommended brake fluid to the proper level.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" on page 3-11.
6. Check:
Brake lever operation
G
Soft or spongy feeling → Bleed the brake
system.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-14.
EAS22490
REMOVING THE FRONT BRAKE MASTER
CYLINDER
TIP
Before removing the front brake master cylinder,
drain the brake fluid from the entire brake sys-
tem.
1. Disconnect:
Front brake light switch connector
G
(from the front brake light switch)
2. Remove:
TIP
To collect any remaining brake fluid, place a
container under the master cylinder and the end
of the brake hose.
3. Remove:
EAS22500
CHECKING THE FRONT BRAKE MASTER
CYLINDER
1. Check:
c
2. Check:
4-34
Union bolt "1"
G
Copper washers "2"
G
Brake hoses "3"
G
Brake lever
G
Brake master cylinder holder
G
Brake master cylinder
G
Brake master cylinder "1"
G
Damage/scratches/wear → Replace.
Brake fluid delivery passages
G
(brake master cylinder body)
Obstruction → Blow out with compressed air.
Brake master cylinder kit "1"
G
Damage/scratches/wear → Replace.
FRONT BRAKE
1