Yamaha YZF-R125 Service Manual: Disassembling the water pump

Yamaha YZF-R125 Service Manual / Cooling system / Water pump / 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".

Disassembling the water pump


2. Remove:

  • Bearing "1"

NOTE:

Remove the bearing from the outside of the water pump housing "2".

Disassembling the water pump


    Water pump
    ...

    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 Crac ...

    Other materials:

    Checking the rectifier/regulator
    1. Check: Rectifier/regulator output voltage Out of specification → Replace the rectifier/ regulator. a. Set the engine tachometer to the spark plug lead. b. Connect the pocket tester (DC 20 V) to the rectifier/regulator coupler as shown. Positive tester probe red "1" Negat ...

    Engine specifications
    ...

    Installing the steering head
    1. Lubricate: Upper bearing Lower bearing Bearing races 2. Install: Lower ring nut Rubber washer Upper ring nut Lock washer Refer to "CHECKING AND ADJUSTING THE STEERING HEAD" on page 3-22. 3. Install: Upper bracket Steering stem nut NOTE: Temporarily tighten t ...

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