Installing The Front Brake Caliper - Yamaha YZ250F Owner's Service Manual

3. Install:
• Brake caliper piston "1"
TIP
Apply the brake fluid on the piston outer sur-
face.
ECA33DD047
NOTICE
• Install the piston with its side "a" facing
the brake caliper.
• Never force to insert.
1

INSTALLING THE FRONT BRAKE CALIPER

EAS1SM5144
1. Install:
• Front brake caliper bracket
• Front brake caliper
(temporarily)
• Copper washers
• Brake hose
• Union bolt
Front brake caliper bracket
28 Nm (2.8 m·kgf, 20 ft·lbf)
Brake hose union bolt
30 Nm (3.0 m·kgf, 22 ft·lbf)
EWA13530
WARNING
Proper brake hose routing is essential to in-
sure safe vehicle operation.
ECA14170
NOTICE
Make sure that the pipe portion "a" of the
brake hose touches the projection "b" on
the brake caliper.
a
a
New
b
2. Install:
• Front brake caliper
• Brake pad spring
• Brake pad
• Brake pad pin
• Brake hose holder
Brake pad pin
Refer to "CHECKING THE FRONT BRAKE
PADS" on page 3-23.
3. Tighten:
• Brake hose holder mounting bolt "1"
Brake hose holder mounting bolt
TIP
Make sure that the brake hose holder "2" is in-
1
stalled with its upper end "a" aligned with the
paint "b" on the brake hose.
b
a
4. Pour brake fluid to the brake master cylinder
reservoir up to the specified level.
Recommended brake fluid
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
4-17
FRONT BRAKE
17 Nm (1.7 m·kgf, 12 ft·lbf)
9 Nm (0.9 m·kgf, 6.5 ft·lbf)
2
DOT 4
1