If any is worn down to the service limit, replace the brush assy.
Starter Motor Brush Length [B] Standard: 12.05 mm (0.4744 in.) Service Limit: 6.55 mm (0.258 in.)

Starter Motor Assembly
Commutator Cleaning and InspectionClutch Cover Assembly
Replace the needle bearings and oil seal with new ones.
NOTE
Install the needle bearings so that the manufacture’s
mark face out.
Install the needle bearings [A] and oil seal [B] position as
shown in the figure.
Press the upper and lower bearings so that the bearing
surface [ ...
Exhaust Butterfly Valve Cable Removal
Remove the fuel tank (see Fuel Tank Removal in the Fuel
System (DFI) chapter).
Open the clamp [A] and free the cables.
Slide the dust covers [B].
Loosen the locknuts [A], and turn the adjusters [B] to give
the cable plenty of play.
Remove the clamp [A].
Remove the up ...
Starter Clutch Inspection
Remove:
Torque Limiter Cover (see Torque limiter Removal)
Turn the torque limiter [A] by hand. The torque limiter
should turn forward freely [B], but should not turn backward.
If the starter clutch does not operate as it should or if it
makes noise, go to the next step.
Disassem ...