Removing The Rear Brake Master Cylinder - Yamaha WR450FB 2012 Owner's Service Manual

ECA14170
NOTICE
Install the brake hose so that its pipe por-
tion "a" directs as shown and lightly touch-
es the projection "b" on the brake caliper.
b
3. Install:
• Brake pad springs
• Brake pads
• Brake pad pin
• Brake pad pin plug
Refer to "REPLACING THE REAR BRAKE
PADS" on page 5-32.
Brake pad pin
17 Nm (1.7 m·kgf, 12 ft·lbf)
4. Fill:
• Brake fluid reservoir
(with the specified amount of the recom-
mended brake fluid)
Recommended fluid
DOT 4
EWA13090
WARNING
• Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.
• Refill with the same type of brake fluid that
is already in the system. Mixing brake flu-
ids may result in a harmful chemical reac-
tion, leading to poor brake performance.
• When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor
lock.
ECA13540
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
5. Bleed:
b
6. Check:
a
7. Check:
EAS22700
REMOVING THE REAR BRAKE MASTER
CYLINDER
TIP
Before removing the rear brake master cylin-
der, drain the brake fluid from the entire brake
system.
1. Remove:
TIP
To collect any remaining brake fluid, place a
container under the master cylinder and the
end of the brake hose.
5-35
NOTICE
• Brake system
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-20.
• Brake fluid level
Below the minimum level mark "a"
the recommended brake fluid to the proper
level.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" on page 3-17.
a
• Brake pedal operation
Soft or spongy feeling
system.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-20.
• Union bolt
• Copper washers
• Brake hose
REAR BRAKE
Add
Bleed the brake