Yamaha YZF-R125 Service Manual: Checking the front brake pads

The following procedure applies to all of the brake pads.

1. Operate the brake.

2. Check:

  • Front brake pad Wear indicator grooves "a" have almost disappeared
    Replace the brake pads as a set.

    Refer to "FRONT BRAKE" on page 4-17.

Checking the front brake pads


    Checking the brake fluid level
    1. Stand the vehicle on a level surface. NOTE: Place the vehicle on a suitable stand. Make sure the vehicle is upright. 2. Check: Brake fluid level Below the minimum level mark "a" → ...

    Checking the rear brake pads
    The following procedure applies to all of the brake pads. 1. Operate the brake. 2. Check: Rear brake pad Wear indicator groove "a" has almost disappeared Replace the brake pads as a set. ...

    Other materials:

    Checking the piston rings
    1. Measure: Piston ring side clearance Out of specification Replace the piston and piston rings as a set. NOTE: Before measuring the piston ring side clearance, eliminate any carbon deposits from the piston ring grooves and piston rings. 2. Install: Piston ring (into the cylind ...

    Installing the thermostat
    1. Install: Thermostat NOTE: Install the thermostat with its breather hole "a" facing up. 2. Install: Copper washer Coolant temperature sensor CAUTION:Use extreme care when handling the coolant temperature sensor. Replace any part that was dropped or subjected to ...

    Checking the shift drum assembly
    1. Check: Shift drum groove Damage/scratches/wear Replace the shift drum assembly. Shift drum segment "1" Damage/wear  Replace the shift drum assembly. Shift drum bearing "2" Damage/pitting Replace the shift drum assembly. ...

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