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 playGenerator removal and installation
Removal
Drain engine oil. Refer to “engine oil and filter replacement” in
section 0b .
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the generator coupler (1).
Remove the generator cover (2).
...
Swingarm related parts inspection
Refer to “swingarm removal and installation” (page 2c-
9).
Spacers
Remove the collar and spacer from the swingarm.
Inspect the collars and spacer for wear and damage.
If any defects are found, replace them with new
ones.
Chain buffer
Inspect the chain buffer for wear and ...
Regulator / rectifier inspection
Inspect the regulator/rectifier in the following procedures:
turn the ignition switch off.
Disconnect the regulator/rectifier couplers. Refer to “regulator /
rectifier removal and installation” .
Measure the voltage between the terminals using the multi-circuit
tester ...