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 playCushion rod bearing removal and installation
Removal
Remove the cushion rod. Refer to “cushion rod removal and installation”
.
Remove the cushion rod bearing with the special
tool.
Special tool
(a):
09921–20240 (bearing remover set)
Installation
Caution
the removed bearings must be replaced with
new on ...
Turn signal / side-stand relay removal and installation
Removal
Remove the frame cover. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Remove the turn signal/side-stand relay (1).
Installation
Install the turn signal/side-stand relay in the reverse
order of removal. ...
Injection timing description
Injection time (injection volume)
The factors to determine the injection time include the basic fuel injection
time, which is calculated on the basis of the
intake air pressure, engine speed and throttle opening angle, and various
compensations. These compensations are
determined according to ...