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 playClutch cable removal and installation
Removal
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the clutch cable from the clutch lever.
Refer to “handlebar removal and installation” in section 6b .
Remove the clutch cable as shown in the throttle cable ro ...
DTC “c44” (p0130/p0135): ho2 sensor
(ho2s) circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
C44/P0130
Ho2 sensor output voltage is not input to
ecm during engine operation and running
condition.
Sensor voltage > 1.0 V
Ho2 sensor circuit is open or shorted to the po ...
Tire inspection
Inspect tire
every 6 000 km (4 000 miles, 12 months)
Tire tread condition
Operating the motorcycle with excessively worn tires will
decrease riding stability and consequently invite a
dangerous situation. It is highly recommended to replace
a tire when the remaining depth of tire tread reaches ...