Yamaha YZF-R125 Service Manual: Checking the camshaft

Yamaha YZF-R125 Service Manual / Engine / Camshaft / Checking the camshaft

1. Check:

  • Camshaft lobes Blue discoloration/pitting/scratches 
    Replace the camshaft.

2. Measure:

  • Camshaft lobe dimensions "a" and "b" Out of specification Replace
    the camshaft.

Checking the camshaft


3. Check:

Camshaft oil passage Obstruction Blow out with
compressed air.

    Camshaft
    ...

    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 ...

    Other materials:

    Operation and important riding points
    Read the Owner's Manual carefully to become familiar with all controls. If there is a control or function you do not understand, ask your Yamaha dealer. WARNING Failure to familiarize yourself with the controls can lead to loss of control, which could cause an accident or injury. TIP ...

    Shifting
    Shifting Shift pedal Neutral position Shifting gears lets you control the amount of engine power available for starting off, accelerating, climbing hills, etc. The gear positions are shown in the illustration. TIP To shift the transmission into the neutral position, press the ...

    Owner's tool kit
    Owner's tool kit Owner's tool kit Engine oil drain attachment The owner's tool kit is located under the rider seat. The service information included in this manual and the tools provided in the owner's tool kit are intended to assist you in the performance of preventive maint ...

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