Yamaha YZF-R125 Service Manual: Installing the camshaft and rocker arms

Yamaha YZF-R125 Service Manual / Engine / Camshaft / Installing the camshaft and rocker arms

1. Lubricate:

  • Rocker arms
  • Rocker arm shafts

2. Lubricate:

  • Camshaft

3. Install:

  • Camshaft "1"

NOTE:

Make sure that the camshaft projections "a" and hole "b" are positioned as shown in the illustration.

Installing the camshaft and rocker arms


4. Install:

  • Rocker arms
  • Rocker arm shafts "1"

NOTE:

  • Make sure that the cutout "a" in each rocker arm shaft is facing downward as shown in the illustration.
  • Make sure the rocker arm shafts (intake and exhaust) are completely pushed into the cylinder head.

Installing the camshaft and rocker arms


    Checking the rocker arms and rocker arm shafts
    The following procedure applies to all of the rocker arms and rocker arm shafts. 1. Check: Rocker arm Damage/wear Replace. 2. Check: Rocker arm shaft Blue discoloration/excessive wea ...

    Valves and valve springs
    ...

    Other materials:

    Replacing the headlight bulbs
    The following procedure applies to the low beam headlight bulb. 1. Remove: Headlight bulb cover "1" 2. Remove: Headlight bulb holder "1" 3. Remove: Headlight bulb "1" WARNINGSince the headlight bulb gets extremely hot, keep flammable products and your ...

    Tachometer
    Tachometer Tachometer Tachometer red zone The electric tachometer allows the rider to monitor the engine speed and keep it within the ideal power range. When the key is turned to "ON", the tachometer needle will sweep once across the r/min range and then return to zero r/min ...

    Checking the coolant temperature sensor
    1. Remove: Coolant temperature sensor WARNING Handle the coolant temperature sensor with special care. Never subject the coolant temperature sensor to strong shocks. If the coolant temperature sensor is dropped, replace it. 2. Check: Coolant temper ...

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