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 playSpecial tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Front brake master cylinder components” “rear brake master
cylinder components” “rear brake pedal construction”
Special tool
...
Engine oil and filter change
Change the engine oil and oil filter
at the scheduled times. The
engine should always be warm
when the oil is changed so the oil
will drain easily. The procedure is
as follows:
Place the motorcycle on the
side stand.
Remove the three screws of
the right fairing 1.
...
Gearshift shaft / gearshift cam plate removal
and installation
Removal
Remove the engine sprocket cover. Refer to “engine sprocket removal and
installation” in section 3a .
Remove the clutch components. Refer to “clutch removal” in section 5c .
Remove the snap ring (1) and washer (2) from the
gearshift shaft.
Special tool
: 09900–06 ...