Yamaha YZF-R125 Service Manual: Checking the rear brake master cylinder

Yamaha YZF-R125 Service Manual / Chassis / Rear brake / 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 master cylinder kit Damage/scratches/wear Replace.


3. Check:

  • Brake fluid reservoir Cracks/damage Replace.

  • Brake fluid reservoir diaphragm Cracks/damage Replace.

4. Check:

  • Brake hoses Cracks/damage/wear Replace.

    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 switc ...

    Assembling the rear brake master cylinder
    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. ...

    Other materials:

    Engine oil and oil filter element
    The engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter element replaced at the intervals specified in the periodic maintenance and lubrication chart. To check the engine oil level Place the vehicle on a level surface and hol ...

    Loading
    Adding accessories or cargo to your motorcycle can adversely affect stability and handling if the weight distribution of the motorcycle is changed. To avoid the possibility of an accident, use extreme caution when adding cargo or accessories to your motorcycle. Use extra care when ridi ...

    Fi system
    The fuel pump delivers fuel to the fuel injector via the fuel filter. The pressure regulator maintains the fuel pressure that is applied to the fuel injector at only 250 kPa (2.50 kg/cm², 36.3 psi). Accordingly, when the energizing signal from the ECU energizes the fuel injector, the fuel ...

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