Yamaha YZF-R125 Service Manual: Checking the water pump

1. Check:

  • Water pump housing cover
  • Water pump housing Cracks/damage Replace.

  • Impeller shaft Cracks/damage/wear Replace.

  • Bearing Rough movement Replace.

  • Radiator outlet hose Cracks/damage Replace.

    Disassembling the water pump
    1. Remove: Water pump seal "1" NOTE: Remove the water pump seal from the inside of the water pump housing "2". 2. Remove: Bearing "1" NOTE: Remove the bearing from the outside of ...

    Assembling the water pump
    1. Install: Water pump seal "1" (into the water pump housing "2") CAUTION:Never lubricate the water pump seal surface with oil or grease. NOTE: Install the water pump ...

    Other materials:

    Starting the engine
    In order for the ignition circuit cut-off system to enable starting, one of the following conditions must be met: The transmission is in the neutral position. The transmission is in gear with the clutch lever pulled and the sidestand up. 1. Turn the key to "ON" and make sure ...

    For your safety - pre-operation checks
    Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in the Owner's Manual. WARNING Failure to inspect or maintain the vehicle properly increases the possibility of ...

    Assembling the front 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 they will cause the brake caliper dust seals and piston seals to swell and distort. ...

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