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:

    General information
    NOTICEThis manual was produced by MBK Industrie. primarily for use by Yamaha dealers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual. Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehi ...

    Checking the bulbs and bulb sockets
    NOTE: Do not check any of the lights that use LEDs. Check each bulb and bulb socket for damage or wear, proper connections, and also for continuity between the terminals. Damage/wear  Repair or replace the bulb, bulb socket or both. Improperly connected Properly connect. No c ...

    Checking and lubricating the brake and shift pedals
    Brake pedal Brake pedal Shift pedal Shift pedal The operation of the brake and shift pedals should be checked before each ride, and the pedal pivots should be lubricated if necessary. Recommended lubricant:Lithium-soap-based grease ...

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