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 InspectionKIBS Motor Relay Inspection (Service Code b 35)
Check the KIBS motor relay fuse (25 A) [A] (see Fuse
Inspection in the Electrical System chapter)
If the fuse is good, check the wiring continuity as follows.
Disconnect:
Battery Positive Cable (see Battery Removal in the Electrical
System chapter)
KIBS Hydraulic Unit Lead Connector (see ...
Gear Position Indicator
The gear position indicator shows the
corresponding gear positions where
the transmission is shifted.
For example, when the transmission
is in 6th gear, “6” is displayed.
A. Gear Position Indicator (Normal mode)
NOTE
If the gear position is in the neutral
position, the gear positio ...
Rear Wheel Installation
Apply high-temperature grease to the grease seal lips.
Fit the collars on the both sides of the hub.
Left Side Collar [A]
Right Side Collar [B] (with Flange)
Engage the drive chain with the rear sprocket.
Install the caliper bracket [A] onto the stopper [B] of the
swingarm.
...