Yamaha YZ 2020 Series, Owner'S Service Manual

Page: 133 / 376

FRONT BRAKE
4-19
e. Install the brake caliper “4” and tighten the
pad pin “5”.
f. Install the pad pin plug “6”.
4. Check:
•
Brake fluid level
Refer to “CHECKING THE BRAKE FLUID
LEVEL” on page 3-23.
5. Check:
• Brake lever operation
A softy or spongy feeling

Bleed the brake
system.
Refer to “BLEEDING THE HYDRAULIC
BRAKE SYSTEM” on page 3-24.
EAM30030
REMOVING THE FRONT BRAKE CALIPER
TIP
Before disassembling the brake caliper, drain
the brake fluid from the entire brake system.
1. Remove:
•
Union bolt
• Copper washer
•
Brake hose
TIP
Put the end of the brake hose into a container
and pump out the brake fluid.
EAM30031
DISASSEMBLING THE FRONT BRAKE
CALIPER
1. Remove:
• Brake caliper piston “1”
•
Brake caliper piston dust seal “2”
• Brake caliper piston seal “3”
a. Blow compressed air into the brake hose
joint opening to force out the piston from
the brake caliper.
WARNING
EWA13550
• Cover the brake caliper piston with a rag.
Be careful not to get injured when the pis-
ton is expelled from the brake caliper.
• Never try to pry out the brake caliper pis-
ton.
b. Remove the brake caliper piston dust seal
and the brake caliper piston seal.
Bolt (brake caliper)
28 N·m (2.8 kgf·m, 21 lb·ft)
Pad pin
17 N·m (1.7 kgf·m, 13 lb·ft)
Pad pin plug
2.5 N·m (0.25 kgf·m, 1.8 lb·ft)
3
a b
T
R
.
.
4
5
T
R
.
.
6
3
1
2