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 playThrottle cable removal and installation
Removal
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” .
Remove the right handlebar switch box. Refer to “handlebar removal and
installation” in section 6b .
Remove the throttle cables as shown in the cable routing diagram. Refer
to “thro ...
Front brake hose routing diagram
Hose clamp
: clamp end should face downward.
Stopper
: after the brake hose union has contacted to the stopper, tighten
the union bolt.
Hose guide
: pass the brake hose through the hose guide.
Stopper
: after positioning the clamp with the stopper ...
DTC “c12” (p0335): ckp sensor circuit
malfunction.
Detected condition and possible cause
Detected condition
Possible cause
The signal does not reach ecm for 3 sec. Or more, after
receiving the starter signal.
Metal particles or foreign material being stuck on the
ckp sensor and rotor tip.
Ckp ...