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

Yamaha YZF-R125 Service Manual / Chassis / Rear brake / Replacing the rear brake pads

NOTE:

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

1. Remove:

  • Brake pads
  • Brake pad spring

NOTE:

To remove the inner brake pad "1", push down on the brake caliper bracket so that there is space to remove the brake pad.

Replacing the rear brake pads


2. Measure:

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


Replacing the rear brake pads


3. Install:

  • Brake pad spring

  • Brake pads

NOTE:

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

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

Replacing the rear brake pads


b. Loosen the bleed screw and push the brake caliper piston into the brake caliper with your finger.

c. Tighten the bleed screw.


d. Install a new brake pad spring "1" and new brake pads.

NOTE:

Install the brake pad spring as shown.


4. Install:

  • Brake pad retaining bolts
  • Brake caliper

5. Install:

  • Rear wheel Refer to "REAR WHEEL" on page 4-12.

6. 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 rear brake pads


7. Check:

  • Brake pedal operation Soft or spongy feeling Bleed
    the brake system.

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

    Checking the rear brake disc
    1. Remove: Rear wheel Refer to "REAR WHEEL" on page 4-12. 2. Check: Brake disc Damage/galling → Replace. 3. Measure: Brake disc deflection Out of specification → Correc ...

    Removing the rear brake caliper
    NOTE: Before disassembling the brake caliper, drain the brake fluid from the entire brake system. 1. Remove: Union bolt "1" Copper washers "2" Brake hose "3" NOTE: Put the end of th ...

    Other materials:

    Replacing the headlight bulbs
    The following procedure applies to the low beam headlight bulb. 1. Remove: Headlight bulb cover "1" 2. Remove: Headlight bulb holder "1" 3. Remove: Headlight bulb "1" WARNINGSince the headlight bulb gets extremely hot, keep flammable products and your ...

    Installing the starter clutch
    1. Install: Starter clutch assembly Starter clutch bolts "1" NOTE: While holding the generator rotor "2" with the sheave holder "3", tighten the starter clutch bolts. Do not allow the sheave holder to touch the projection on the generator rotor. Stake the end "a" of each start ...

    Removing the starter clutch
    1. Remove: Starter clutch bolts "1" NOTE: While holding the generator rotor "2" with the sheave holder "3", remove the starter clutch bolts. Do not allow the sheave holder to touch the projection on the generator rotor. ...

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