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:

    Operation and important riding points
    Read the Owner's Manual carefully to become familiar with all controls. If there is a control or function you do not understand, ask your Yamaha dealer. WARNING Failure to familiarize yourself with the controls can lead to loss of control, which could cause an accident or injury. TIP ...

    Checking the coolant temperature sensor
    1. Remove: Coolant temperature sensor WARNING Handle the coolant temperature sensor with special care. Never subject the coolant temperature sensor to strong shocks. If the coolant temperature sensor is dropped, replace it. 2. Check: Coolant temper ...

    Installing the cylinder head
    1. Install: Cylinder head NOTE: Pass the timing chain through the timing chain cavity. 2. Tighten: Cylinder head bolts "1" Cylinder head bolts "2" NOTE: Lubricate the cylinder head bolts and washers with engine oil. Tighten the cylinder head bolts in the proper tighten ...

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