Yamaha YZF-R125 Service Manual: Adjusting the rear disc brake

1. Check:

  • Brake pedal position (distance "a" from the center of the rider footrest to the center of the brake pedal) Out of specification Adjust.

Adjusting the rear disc brake


2. Adjust:

  • Brake pedal position

a. Loosen the locknut "1".

b. Remove the cotter pin "2", washer "3", and pin "4".

c. Turn the adjusting nut "5" in direction "a" or "b" until the specified brake pedal position is obtained.


Adjusting the rear disc brake


d. Tighten the locknut "1" to specification.


WARNING

A soft or spongy feeling in the brake pedal can indicate the presence of air in the brake system. Before the vehicle is operated, the air must be removed by bleeding the brake system. Air in the brake system will considerably reduce braking performance.

CAUTION:

After adjusting the brake pedal position, make sure there is no brake drag.

e. Install the pin, washer, and cotter pin.

WARNING

Always use a new cotter pin.

    Chassis
    ...

    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" → ...

    Other materials:

    Adjusting the throttle cable free play
    Throttle cable free play The throttle cable free play should measure 3.0-5.0 mm (0.12-0.20 in) at the throttle grip. Periodically check the throttle cable free play and, if necessary, adjust it as follows. TIP The engine idling speed must be correctly adjusted before checkin ...

    Care
    While the open design of a motorcycle reveals the attractiveness of the technology, it also makes it more vulnerable. Rust and corrosion can develop even if high-quality components are used. A rusty exhaust pipe may go unnoticed on a car, however, it detracts from the overall appearanc ...

    Coolant
    The coolant level should be checked before each ride. In addition, the coolant must be changed at the intervals specified in the periodic maintenance and lubrication chart. To check the coolant level Place the vehicle on a level surface and hold it in an upright position. TIP ...

    2025 Copyright www.yam-r125.net |