Removing The Front Brake Calipers; Disassembling The Front Brake Caliper; Checking The Front Brake Caliper - Yamaha RAPTOR YFM125RA Service Manual

5. Check:
• Brake lever operation
Soft or spongy feeling → Bleed the brake
system.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-11.
EAS22300

REMOVING THE FRONT BRAKE CALIPERS

The following procedure applies to both of the
brake calipers.
TIP
Before removing the brake caliper, drain the
brake fluid from the entire brake system.
1. Remove:
• Union bolt "1"
• Copper washers "2"
• Brake hose "3"
• Brake caliper bolts "4"
TIP
Put the end of the brake hose into a container
and pump out the brake fluid carefully.
EAS22311
DISASSEMBLING THE FRONT BRAKE
CALIPER
1. Remove:
• Brake caliper piston
• Brake caliper piston dust seal "1"
• Brake caliper piston seal "2"
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a. Blow compressed air into the brake hose
joint opening "a" to force out the piston from
the brake caliper.
EWA13550
WARNING
• 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 brake caliper piston seal.
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EAS22371

CHECKING THE FRONT BRAKE CALIPER

Recommended brake component replace-
ment schedule
Brake pads
Piston seal
Piston dust seal
Brake hose
Brake fluid
1. Check:
• Brake caliper piston "1"
Rust/scratches/wear → Replace the
brake caliper piston.
4-24
FRONT BRAKE
If necessary
Every two years
Every two years
Every four years
Every two years and
whenever the brake is
disassembled