Yamaha YZF-R125 Service Manual: Removing the rear brake master cylinder

Yamaha YZF-R125 Service Manual / Chassis / Rear brake / Removing the rear brake master cylinder

NOTE:

Before removing the rear brake master cylinder, drain the brake fluid from the entire brake system.

1. Disconnect:

  • Rear brake light switch coupler

2. Loosen:

  • Rear brake light switch "1"

3. Remove:

  • Rear brake master cylinder bolts
  • Rear brake master cylinder

4. Remove:

  • Rear brake light switch "1"
  • Copper washers "2"
  • Brake hose "3"

Removing the rear brake master cylinder


NOTE:

To collect any remaining brake fluid, place a container under the master cylinder and the end of the brake hose.

    Installing the rear brake caliper
    1. Install: Brake caliper "1" Copper washers Brake hose "2" Union bolt "3" WARNINGProper brake hose routing is essential to insure safe vehicle operation. Refer to "CABLE ...

    Checking the rear brake master cylinder
    1. Check: Brake master cylinder Damage/scratches/wear Replace. Brake fluid delivery passages (brake master cylinder body) Obstruction Blow out with compressed air. 2. Check: Brake ...

    Other materials:

    Checking the valve springs
    The following procedure applies to all of the valve springs. 1. Measure: Valve spring free length "a" Out of specification Replace the valve spring. 2. Measure: Compressed valve spring force "a" Out of specification Replace the valve spring. b. Installed length 3. ...

    Installing the front wheel (disc)
    1. Install: Front brake disc NOTE: Be sure to install the front brake disc with the arrow mark "a" on the disc facing out. Tighten the brake disc bolts in stages and in a crisscross pattern. 2. Check: Front brake disc Refer to "CHECKING THE FRONT BRAKE DISC" on page 4 ...

    Checking the relays
    Check each switch for continuity with the pocket tester. If the continuity reading is incorrect, replace the relay. 1. Disconnect the relay from the wire harness. 2. Connect the pocket tester ( × 1) and battery (12 V) to the relay terminal as shown. Check the relay operation. Out ...

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