Installing The Front Brake Caliper - Yamaha YZ450FX 2019 Owner's Service Manual

• Never force to insert.
1
BF
EAM30035

INSTALLING THE FRONT BRAKE CALIPER

1. Install:
• Front brake caliper bracket
• Front brake caliper
(temporarily)
• Copper washer
New
• Brake hose
• Union bolt
Front brake caliper bracket
28 N·m (2.8 kgf·m, 21 lb·ft)
Brake hose union bolt
30 N·m (3.0 kgf·m, 22 lb·ft)
EWA13531
WARNING
Proper brake hose routing is essential to in-
sure safe vehicle operation.
ECA24460
NOTICE
Make sure that the pipe portion "a" of the
brake hose touches the projection "b" on the
brake caliper.
a
2. Install:
• Front brake caliper
• Brake pad spring
• Brake pad
• Brake pad pin
• Brake hose holder
a
1
3. Tighten:
• Brake hose holder bolt "1"
TIP
Make sure that the brake hose holder "2" is in-
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
EWA13090
• 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 fluids
may result in a harmful chemical reaction,
leading to poor brake performance.
• When refilling, be careful that water does
not enter the brake fluid reservoir. Water
b
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
ECA13540
NOTICE
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean up
any spilt brake fluid immediately.
4-19
FRONT BRAKE
Brake pad pin
17 N·m (1.7 kgf·m, 13 lb·ft)
Refer to "CHECKING THE FRONT BRAKE
PADS" on page 3-23.
Brake hose holder bolt
9 N·m (0.9 kgf·m, 6.6 lb·ft)
2
reservoir up to the specified level.
Specified brake fluid
DOT 4
WARNING
1