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 playIgnition coil inspection
Refer to “electrical components location” in section 0a .
Ignition coil primary peak voltage
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect all ignition coil. Refer to “ignition coil and spark plug
removal and installation” .
...
Radiator cap inspection
Inspect the radiator cap in the following procedures:
remove the radiator cap. Refer to “cooling circuit inspection” .
Attach the radiator cap (1) to the radiator tester (2)
as shown.
Slowly apply pressure to the radiator cap.
If the radiator cap does not hold the pre ...
Speed sensor removal and installation
Removal
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the speed sensor lead wire coupler (1).
Remove the speed sensor (2).
Installation
Install the speed sensor in the reverse order of removal.
Pay atte ...