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:

    Checking the condition of the bulbs
    The following procedure applies to all of the bulbs. 1. Remove: Bulb WARNINGSince the headlight bulbs get extremely hot, keep flammable products and your hands away from them until they have cooled down. CAUTION: Be sure to hold the socket firmly when re ...

    Electrical components
    1. Main switch 2. Clutch switch 3. Front brake light switch 4. Ignition coil 5. Throttle body sensor assembly (intake air pressure sensor, intake air temperature sensor, throttle position sensor) 6. FID (fast idle solenoid) 7. Rectifier/regulator 8. Lean angle sensor 9. Starting circui ...

    Storage
    Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover. NOTICE Storing the motorcycle in a poorly ventilated room or covering it with a tarp, while it is still wet, will allow water and humidity to seep in and ...

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