Yamaha YZF-R125 Service Manual: Installing the water pump

1. Install:

  • Water pump assembly "1"
  • O-rings "2"

NOTE:

  • Align the projection "a" on the impeller shaft with the slit "b" on the camshaft sprocket bolt.
  • Lubricate the O-rings with a thin coat of lithiumsoap- based grease.

Installing the water pump


2. Fill:

  • Cooling system (with the specified amount of the recommended coolant)

Refer to "CHANGING THE COOLANT" on page 3-15.

3. Check:

Cooling system Leaks Repair or replace the faulty
part.

4. Measure:

Radiator cap opening pressure Below the specified pressure
Replace the radiator cap.

Refer to "CHECKING THE RADIATOR" on page 6-3.

    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 ...

    Fuel system
    ...

    Other materials:

    Removing the rear wheel (disc)
    1. Stand the vehicle on a level surface. WARNINGSecurely support the vehicle so that there is no danger of it falling over. 2. Elevate: Rear wheel NOTE: Place the vehicle on a suitable stand so that the rear wheel is elevated. 3. Remove: Rear brake caliper NOTE: ...

    Front wheel
    To remove the front wheel WARNING To avoid injury, securely support the vehicle so there is no danger of it falling over. Loosen the front wheel axle pinch bolt, then the wheel axle and the brake caliper bolts. Front wheel axle pinch bolt Lift the front wheel of ...

    Rear wheel
    To remove the rear wheel WARNING To avoid injury, securely support the vehicle so there is no danger of it falling over. Loosen the axle nut. Axle nut Drive chain slack adjusting bolt Locknut Brake caliper Lift the rear wheel off the ground according to the pr ...

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