Checking The Rear Brake Master Cylinder; Assembling The Rear Brake Master Cylinder; Installing The Rear Brake Master Cylinder - Yamaha XT250X Service Manual

container under the master cylinder and the end
of the brake hose.
EAS22710
CHECKING THE REAR BRAKE MASTER
CYLINDER
1. Check:
Rear brake master cylinder "1"
G
Damage/scratches/wear → Replace.
Brake fluid delivery passages "2"
G
(brake master cylinder body)
Obstruction → Blow out with compressed air.
1
2. Check:
Brake master cylinder kit "1"
G
Damage/scratches/wear → Replace.
3. Check:
Brake master cylinder reservoir cap
G
Brake master cylinder reservoir diaphragm
G
holder
Brake master cylinder reservoir diaphragm
G
Cracks/damage → Replace.
4. Check:
Rear brake hose
G
Cracks/damage/wear → Replace.
EAS22730
ASSEMBLING THE REAR BRAKE MASTER
CYLINDER
EWA13520
WARNING
Before installation, all internal brake com-
G
ponents should be cleaned and lubricated
with clean or new brake fluid.
Never use solvents on internal brake com-
G
ponents.
Recommended fluid
DOT 4
1. Install:
Cylinder cup "1"
New
G
Master cylinder piston "2"
G
Install it using with cylinder cup installer "3".
2. Assemble:
2
EAS22750
INSTALLING THE REAR BRAKE MASTER
CYLINDER
1. Install:
EWA13530
Proper brake hose routing is essential to in-
sure safe vehicle operation. Refer to "CA-
BLE ROUTING" on page 2-25.
ECA14160
When installing the brake hose onto the
brake master cylinder, make sure the brake
pipe touches the projection "a" as shown.
4-33
Cylinder cup installer
90890-01996
Spring"1"
G
Master cylinder piston "2"
G
Adjusting rod "3"
G
Circlip"4"
New
G
Dust boot"5"
G
Copper washers
New
G
Brake hoses
G
Union bolt
G
Brake hose union bolt
30 Nm (3.0 m•kg, 22 ft•lb)
WARNING
CAUTION:
REAR BRAKE