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

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

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 caliper body "3" Cracks/damage   Replace the
    brake caliper assembly.
  • Brake fluid delivery passages (brake caliper body)Obstruction
    Blow out with compressed air.

    Obstruction Blow out with compressed air.


WARNING

Whenever a brake caliper is disassembled, replace the brake caliper piston dust seals and piston seals.

2. Check:

  • Brake caliper bracket Cracks/damage  Replace.

    Disassembling the rear brake caliper
    1. Remove: Brake caliper piston "1" Brake caliper piston dust seal "2" Brake caliper piston seal "3" a. Blow compressed air into the brake hose joint opening "a" to force out the pisto ...

    Assembling the rear brake caliper
    WARNING Before installation, all internal brake components should be cleaned and lubricated with clean or new brake fluid. Never use solvents on internal brake components as ...

    Other materials:

    Removing the crankshaft
    1. Remove: Crankshaft "1" NOTE: Remove the crankshaft with the crankcase separating tool "2". Make sure the crankcase separating tool is centered over the crankshaft. CAUTION: To protect the end of the crankshaft, place an appropriate sized socket between the c ...

    Checking the front brake disc
    1. Remove: Front wheel Refer to "FRONT WHEEL" on page 4-6. 2. Check: Brake disc Damage/galling Replace. 3. Measure: Brake disc deflection Out of specification Correct the brake disc deflection or replace the brake disc. a. Place the vehicle on a suitable stand ...

    Identification numbers
    Record the key identification number, vehicle identification number and model label information in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. KEY IDENTIFICATION NUMBER: VEHICLE IDENTIFICATION ...

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