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 playVehicle identification number
The frame serial number or V.I.N. (Vehicle identification
number) “a” is stamped on the right side of the steering
head tube. The engine serial number “b” is located on
the lower crankcase. These numbers are required
especially for registering the machine and ordering
spare parts.
...
Immobilizer description (for e-02, 19, 24, 51)
The immobilizer, an anti-theft system, is installed as a
standard equipment.
The immobilizer verifies that the key id agrees with ecm
id by means of radio communication through the
immobilizer antenna. When the id agreement is verified,
the system makes the engine ready to start.
...
Spark plug inspection and cleaning
Inspect spark plug
every 6 000 km (4 000 miles, 12 months)
Heat range
Remove the spark plugs. Refer to “ignition coil and spark plug removal
and installation” in section 1h .
Check spark plug heat range by observing electrode
color. If the electrode of the spark plug is wet
appe ...