If there are notches worn into the splines, replace the sub clutch hub. Also, replace the steel plates if their teeth are damaged.

Clutch Housing Finger Inspection
Damper Cam InspectionSidestand Switch Operation Inspection
Raise the rear wheel off the ground with the stand (see
Rear Wheel Removal in the Wheels/Tires chapter).
Inspect the sidestand switch [A] operation accordance to
below table.
Sidestand Switch Operation
If the sidestand switch operation does not work, inspect
or replace the foll ...
Cable, Wire, and Hose Routing
1. Clamp (Hold the regulator/rectifier lead. Run the lead inside of the
installation hole.)
2. Clamp (Bend down the clamp, and hold the main harness and the vacuum hose
(equipped
models).)
3. Clamp (Hold the air intake solenoid valve lead (equipped models).)
4. Run the vacuum hose under ...
Armature Inspection
Using the × 1 Ω hand tester range, measure the resistance
between any two commutator segments [A].
Special Tool - Hand Tester: 57001-1394
If there is a high resistance or no reading (∞) between any
two segments, a winding is open and the starter motor
must be replaced.
...