Yamaha YZF-R125 Service Manual: Disassembling the rear brake caliper

Yamaha YZF-R125 Service Manual / Chassis / Rear brake / Disassembling the rear brake caliper

1. Remove:

  • Brake caliper piston "1"
  • Brake caliper piston dust seal "2"
  • Brake caliper piston seal "3"

Disassembling the rear brake caliper


a. Blow compressed air into the brake hose joint opening "a" to force out the piston from the brake caliper.

WARNING

  • Cover the brake caliper piston with a rag.

    Be careful not to get injured when the piston is expelled from the brake caliper.

  • Never try to pry out the brake caliper piston.

Disassembling the rear brake caliper


b. Remove the brake caliper piston seal and dust seal.

    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 ...

    Checking the rear brake caliper
    1. Check: Brake caliper piston "1" Rust/scratches/wear Replace the brake caliper piston. Brake caliper cylinder "2" Scratches/wear Replace the brake caliper assembly. Brake ...

    Other materials:

    Separating the crankcase
    1. Remove: Crankcase bolts NOTE: Loosen each bolt 1/4 of a turn at a time, in stages and in the proper sequence as shown. A. Right crankcase B. Left crankcase 2. Turn: Shift drum segment NOTE: Turn the shift drum segment "1" to the position shown in the illustration. In this ...

    Checking the spark plug
    The spark plug is an important engine component, which is easy to check. Since heat and deposits will cause any spark plug to slowly erode, the spark plug should be removed and checked in accordance with the periodic maintenance and lubrication chart. In addition, the condition of the ...

    Multi-function display
    1. Multi-function display 2. "RESET/SELECT" button The multi-function display is equipped with the following: a speedometer (which shows the riding speed) an odometer (which shows the total distance traveled) two tripmeters (which show the distance traveled since they were last ...

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