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2
3
EAS30725
CHECKING THE FRONT BRAKE MASTER
CYLINDER
1. Check:
• Brake master cylinder
Damage/scratches/wear → Replace.
• Brake fluid delivery passages
(brake master cylinder body)
Obstruction → Blow out with compressed air.
2. Check:
• Brake master cylinder kit
Damage/scratches/wear → Replace.
3. Check:
• Brake master cylinder reservoir "1"
• Brake master cylinder reservoir cap "2"
• Brake master cylinder reservoir diaphragm
holder "3"
• Brake master cylinder reservoir diaphragm
"4"
Damage/wear → Replace.
2
3
4
4. Check:
• Front 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.
1
1
4-47
Specified brake fluid
YAMAHA GENUINE BRAKE
FLUID (DOT 4)
EAS30182
INSTALLING THE FRONT BRAKE MASTER
CYLINDER
1. Install:
• Brake master cylinder
• Brake master cylinder holder "1"
Front brake master cylinder hold-
er bolt
11 Nm (1.1 m·kgf, 8.0 ft·lbf)
TIP
• Install the brake master cylinder holder with the
"UP" mark "a" facing up.
• Align the edge "b" of the brake master cylinder
holder with the edge "c" of the stay on the han-
dlebar as shown in the illustration.
• First, tighten the upper bolt, then the lower bolt.
b
c
2. Install:
• Brake hose gaskets "1"
• Front brake hose "2"
• Brake hose union bolt "3"
Front brake hose union bolt
(master cylinder side)
29 Nm (2.9 m·kgf, 21 ft·lbf)
EWA13531
WARNING
Proper brake hose routing is essential to in-
sure safe vehicle operation.
TIP
• Make sure that the distance "a" between the
brake hose and the handlebar "4" is 40–44 mm
(1.57–1.73 in) as shown in the illustration.
FRONT BRAKE
1
a
New
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