Assembling/Installing The Front Brake Master Cylinder - Yamaha YZF-R25 Service Manual

1
4. Check:
• Brake hose
Cracks/damage/wear → Replace.
EAS30181
ASSEMBLING THE FRONT BRAKE MASTER
CYLINDER
EWA13520
WARNING
• Before installation, all internal brake com-
ponents should be cleaned and lubricated
with clean or new brake fluid.
• Never use solvents on internal brake com-
ponents.
Specified brake fluid
DOT 4
EAS30182
INSTALLING THE FRONT BRAKE MASTER
CYLINDER
1. Install:
• Front brake master cylinder assembly
• Front brake master cylinder holder
Front brake master cylinder hold-
er bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
TIP
• Install the front brake master cylinder holder
with the "UP" mark "a" facing up.
• Align the mating surfaces of the front brake
master cylinder holder with the punch mark "b"
on the handlebar (right), or install the front
brake master cylinder so that the distance "c"
between the bottom of the handlebar (right)
and the bottom of the front brake master cylin-
der is 11 mm (0.43 in) as shown in the illustra-
tion.
• First, tighten the upper bolt, then the lower bolt.
2
3
2. Install:
• Brake hose
• Brake hose gaskets
• Brake hose union bolt
EWA13530
Proper brake hose routing is essential to in-
sure safe vehicle operation.
TIP
• Attach the brake hose so that its angle is 75° to
85° against the straight line in parallel with the
ceiling plane of the master cylinder.
• While holding the brake hose, tighten the union
bolt as shown.
• Turn the handlebar to the left and right to make
sure the brake hose does not touch other parts
(e.g., wire harness, cables, leads). Correct if
necessary.
4-40
FRONT BRAKE
b
FWD
c
New
Front brake hose union bolt
(master cylinder side)
29 Nm (2.9 m·kgf, 21 ft·lbf)
WARNING
a