Yamaha YZF-R125 Service Manual: Checking the friction plates

Yamaha YZF-R125 Service Manual / Engine / Clutch / Checking the friction plates

The following procedure applies to all of the friction plates.

1. Check:

  • Friction plate Damage/wear Replace the
    friction plates as a set.

2. Measure:

  • Friction plate thickness Out of specification Replace
    the friction plates as a set.

NOTE:

Measure the friction plate at four places.


Checking the friction plates


A. Friction plate 1

B. Friction plate 2

C. Friction plate 3 (Green)

a. Green paint

    Removing the clutch
    1. Straighten the lock washer tab. 2. Loosen: Clutch boss nut "1" NOTE: While holding the clutch boss "2" with the universal clutch holder "3", loosen the clutch boss nut. ...

    Checking the clutch plates
    The following procedure applies to all of the clutch plates. 1. Check: Clutch plate Damage Replace the clutch plates as a set. 2. Measure: Clutch plate warpage (with a surface p ...

    Other materials:

    Checking the front wheel
    1. Check: Front wheel axle Roll the wheel axle on a flat surface. Bends → Replace. WARNINGDo not attempt to straighten a bent wheel axle. 2. Check: Tire Front wheel Damage/wear → Replace. Refer to "CHECKING THE TIRES" on page 3-23 and "CHECKING TH ...

    Checking the timing chain tensioner
    1. Check: Timing chain tensioner Cracks/damage/rough movement Replace. a. Lightly press the timing chain tensioner rod into the timing chain tensioner housing by hand. NOTE: While pressing the timing chain tensioner rod, wind it clockwise with a thin screwdriver "1" until it stops. b. ...

    Checking the rear brake master cylinder
    1. Check: Brake master cylinder Damage/scratches/wear Replace. Brake fluid delivery passages (brake master cylinder body) Obstruction Blow out with compressed air. 2. Check: Brake master cylinder kit Damage/scratches/wear Replace. 3. Check: Brake fluid reservoir Cracks/ ...

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