Checking The Front Brake Master Cylinder; Assembling The Front Brake Master Cylinder - Yamaha XG250 Service Manual

1. Disconnect:
Front brake switch coupler
●
(from the brake switch)
2. Remove:
Union bolt
●
Copper washers
●
Front brake hose
●
NOTE:
To collect any remaining brake fluid, place a
container under the master cylinder and the end
of the brake hose.
3. Remove:
Master cylinder boots "1"
●
Circlip "2"
●
Master cylinder kit "3"
●
Spring "4"
●
EAS22500
CHECKING THE FRONT BRAKE MASTER
CYLINDER
1. Check:
Brake master cylinder "1"
●
Damage/scratches/wear → Replace.
Brake fluid delivery passages "2"
●
(brake master cylinder body)
Obstruction → Blow out with compressed air.
2. Check:
Brake master cylinder kit "1"
●
Brake master cylinder cup "2"
●
Damage/scratches/wear → Replace.
2
1
3. Check:
Brake master cylinder reservoir cap "1"
●
Brake master cylinder reservoir diaphragm
●
holder
Brake master cylinder reservoir diaphragm
●
Damage/wear → Replace.
4
3
4. Check:
Brake hose
●
Cracks/damage/wear → Replace.
EAS22520
ASSEMBLING THE FRONT BRAKE MASTER
CYLINDER
EWA13520
Before installation, all internal brake com-
●
ponents should be cleaned and lubricated
4-23
FRONT BRAKE
2
2
1
WARNING
1
1