Adjust the engine idle speed periodically on the engine at normal operating temperature.
To adjust the idle speed:

Engine oil and filter change
Throtile cable playPillion footrest construction
Pillion footrest
Spring
Ball
E-ring
Washer
O-ring
Footrest pin
Apply grease.
Do not reuse.
...
Wheel balance check and adjustment
Check and adjust the wheel balance in the following
procedures:
removal the wheel assembly. Refer to “front wheel assembly removal and
installation” and “rear wheel assembly removal and installation” .
Remove the mounting drum from the rear wheel.
(For rear wheel) ref ...
Transmission related parts inspection
Refer to “transmission removal” , “transmission installation” and
“countershaft gear / driveshaft gear disassembly and assembly” .
Gearshift fork to groove clearance
Note
the clearance for each gearshift fork plays
an important role in the smoothness and
positiveness of the ...