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 playExterior parts removal and installation
Side frame cover
Removal
Note
the left and right side frame covers are
installed symmetrically and therefore the
removal/installation procedure for one side is
the same as that for the other side.
Remove the bolt (1).
Remove the side frame cover (2).
...
Inspecting the drive chain
When inspecting the chain, look
for the following:
loose pins
damaged rollers
dry or rusted links
kinked or binding links
excessive wear
improper chain adjustment
If you find anything wrong with the
drive chain condition or adjustment,
correct the pr ...
Rear shock absorber bearing removal and installation
Removal
Remove the rear shock absorber. Refer to “rear shock absorber removal
and installation” .
Remove the spacer (1).
Remove the rear shock absorber bearing with the
special tool.
Special tool
(a): 09943–88211 (pinion bearing
installer)
Installation
C ...