Assembling The Front Brake Master Cylinder; Installing The Front Brake Master Cylinder - Yamaha WR250R Service Manual

EAS22520
ASSEMBLING THE FRONT 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:
Master cylinder cup
G
Master cylinder piston
G
2. Install:
Circlip "1"
New
G
Dust boot "2"
New
G
EAS22530
INSTALLING THE FRONT BRAKE MASTER
CYLINDER
1. Install:
Brake master cylinder "1"
G
Brake master cylinder holder bolt
7 Nm (0.7 m•kg, 5.1 ft•lb)
NOTE:
Install the brake master cylinder holder with the
G
"UP" mark facing up.
Align the end of the brake master cylinder hold-
G
er with the punch mark "a" on the handlebar.
First, tighten the upper bolt, then the lower bolt.
G
1
2. Install:
Copper washers "1"
G
Brake hose "2"
G
Union bolt "3"
G
Brake hose union bolt
30 Nm (30. m•kg, 22 ft•lb)
EWA13530
WARNING
Proper brake hose routing is essential to in-
sure safe vehicle operation. Refer to "CA-
BLE ROUTING" on page 2-30.
NOTE:
While holding the brake hose, tighten the union
G
bolt as shown.
Turn the handlebar to the left and right to make
G
sure the brake hose does not touch other parts
(e.g., wire harness, cables, leads). Correct if
necessary.
3. Fill:
Brake master cylinder reservoir
G
(with the specified amount of the recom-
mended brake fluid)
Recommended fluid
DOT 4
EWA13540
WARNING
Use only the designated brake fluid. Other
G
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
4-21
FRONT BRAKE
a
New
1 New
2
3