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 clutch boss
    1. Check: Clutch boss splines Damage/pitting/wear Replace the clutch boss. NOTE: Pitting on the clutch boss splines will cause erratic clutch operation. Checking the pressure plate 1. Check: Pressure plate Cracks/damage Replace. Checking the clutch push lever and short clutch push ...

    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. ...

    Checking and lubricating the brake and clutch levers
    Brake lever Brake lever Clutch lever Clutch lever The operation of the brake and clutch levers should be checked before each ride, and the lever pivots should be lubricated if necessary. Recommended lubricants:Brake lever: Silicone grease Clutch lever: Lithium-soap ...

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