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:

    Removing the rear brake caliper
    NOTE: Before disassembling the brake caliper, drain the brake fluid from the entire brake system. 1. Remove: Union bolt "1" Copper washers "2" Brake hose "3" NOTE: Put the end of the brake hose into a container and pump out the brake fluid carefully. ...

    Installing the exhaust assembly
    1. Install: Exhaust assembly "1" Exhaust pipe nuts "2" Exhaust assembly bolts "3" "4" NOTE: Do not fully tighten the nuts and bolts. 2. Tighten: Exhaust pipe nuts "2" Exhaust assembly bolt "4" Exhaust assembly bolt "3" ...

    Separating the crankcase
    1. Remove: Crankcase bolts NOTE: Loosen each bolt 1/4 of a turn at a time, in stages and in the proper sequence as shown. A. Right crankcase B. Left crankcase 2. Turn: Shift drum segment NOTE: Turn the shift drum segment "1" to the position shown in the illustration. In this ...

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