Yamaha YZ450F User Manual

REAR BRAKE
4-29
EAS1SL5160
ASSEMBLING THE REAR 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. Wash the brake master cylinder and the
brake master cylinder kit with brake fluid.
2. Install:
• Primary cylinder cup “1”
• Secondary cylinder cup “2”
Install to the brake master cylinder piston
“3”.
EWA13520
WARNING
Apply brake fluid to the cylinder cups and
install them as shown. Wrong orientation in
installation causes poor braking perfor-
mance.
3. Install:
• Spring “1”
Install to the brake master cylinder piston
“2”.
TIP
Install the spring with a smaller inside diameter
to the brake master cylinder piston.
4. Install:
• Master cylinder kit “1”
• Push rod “2”
• Circlip “3”
• Dust boot “4”
TIP
• Before installation, apply brake fluid to the
brake master cylinder kit.
• Before installation, apply silicone grease to
the push rod end.
• Use circlip pliers to install the circlip.
EAS1SL5161
INSTALLING THE REAR BRAKE MASTER
CYLINDER
1. Install:
• Copper washers
• Brake hose
• Union bolt
EWA13530
WARNING
Proper brake hose routing is essential to in-
sure safe vehicle operation.
ECA1DX1008
NOTICE
Make sure that the pipe portion of the brake
hose touches the projection “a” on the
brake caliper.
Recommended brake fluid
DOT 4
2
3
1
2
3
1
Brake hose union bolt
30 Nm (3.0 m·kgf, 22 ft·lbf)
1
2
New
New
1
3
4
2
New New
New
T
R
.
.

Yamaha YZ450F Specifications

General

Brand	Yamaha
Model	YZ450F
Category	Motorcycle
Language	English