Yamaha YZF-R125 Service Manual: Replacing the front brake pads

Yamaha YZF-R125 Service Manual / Chassis / Front brake / Replacing the front brake pads

NOTE:

When replacing the brake pads, it is not necessary to disconnect the brake hose or disassemble the brake caliper.

1. Measure:

Brake pad wear limit "a" Out of specification Replace
the brake pads as a set.

2. Install:

Brake pad support

Brake pad spring

Brake pads

NOTE:

Always install new brake pads, a new brake pad spring and a new brake pad support as a set.

a. Connect a clear plastic hose "1" tightly to the bleed screw "2". Put the other end of the hose into an open container.

Replacing the front brake pads

b. Loosen the bleed screw and push the brake caliper pistons into the brake caliper with your fingers.

c. Tighten the bleed screw.

d. Install new brake pad support, a new brake pad spring and new brake pads.

NOTE:

The arrow mark "a" on the brake pad spring must point in the direction of disc rotation.

Replacing the front brake pads

3. Install:

Brake pad pin
Brake pad clips
Front brake caliper

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.

Replacing the front brake pads

5. Check:

Brake lever operation Soft or spongy feeling Bleed
the brake system.

Refer to "BLEEDING THE HYDRAULIC BRAKE SYSTEM" on page 3-20.

Checking the front brake disc

1. Remove: Front wheel Refer to "FRONT WHEEL" on page 4-6. 2. Check: Brake disc Damage/galling Replace. 3. Measure: Brake disc deflection Out of specification Correct the b ...

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 en ...

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