Removing The Front Brake Caliper; Checking The Front Brake Caliper; Assembling The Front Brake Caliper - Yamaha YZF-R125 Service Manual

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Front brake caliper bolt
30 Nm (3.0 m·kg, 22 ft·lb)
LOCTITE®
4. Check:
• Brake fluid level
Below the minimum level mark "a" → Add the
recommended brake fluid to the proper level.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" on page 3-18.
5. Check:
• Brake lever operation
Soft or spongy feeling → Bleed the brake sys-
tem.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-20.
EAS22290

REMOVING THE FRONT BRAKE CALIPER

NOTE:
Before disassembling the brake caliper, drain
the brake fluid from the entire brake system.
1. Remove:
• Brake hose union bolt "1"
• Copper washers "2"
• Brake hose "3"
NOTE:
Put the end of the brake hose into a container
and pump out the brake fluid carefully.
EAS22380

CHECKING THE FRONT BRAKE CALIPER

1. Check:
a
EWA5D71012
Whenever a brake caliper is disassembled,
replace the brake caliper piston dust seals
and piston seals.
2. Check:
EAS22400

ASSEMBLING THE FRONT BRAKE CALIPER

EWA5D71013
3
• Before installation, all internal brake com-
1
• Never use solvents on internal brake com-
2
4-23
Recommended brake component replace-
ment schedule
Brake pads
Piston seals
Piston dust seals
Brake hose
Brake fluid
• Brake caliper pistons "1"
Rust/scratches/wear → Replace the brake
caliper assembly.
• Brake caliper body "2"
Cracks/damage → Replace the brake caliper
assembly.
• Brake fluid delivery passages
(brake caliper body)
Obstruction → Blow out with compressed air.
WARNING
• Brake caliper bracket
Cracks/damage → Replace.
WARNING
ponents should be cleaned and lubricated
with clean or new brake fluid.
ponents as they will cause the brake caliper
dust seals and piston seals to swell and
distort.
FRONT BRAKE
If necessary
Every two years
Every two years
Every four years
Every two years and
whenever the brake
is disassembled
2
1