Check the engine oil level as follows:

The engine oil level should be between "L" (Low) and "f" (full) lines.
|
Caution The engine oil level must be between the " l'' (low) line and "f" (full) ~i ne, or engine damage may occur. Check the oil level, through the inspection window, with the motorcycle held vertically on level ground before each use of the motorcycle. |
Engine oil
Engine oil and filter changeDTC “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 ...
Use of sds diagnosis reset procedures
Note
the malfunction code is memorized in the
ecm also when the lead wire coupler of any
sensor is disconnected. Therefore, when a
lead wire coupler has been disconnected at
the time of diagnosis, erase the stored
malfunction history code using sds.
After repairing ...
Tampering with noise control system prohibited
Federal law prohibits the following
acts or the causing there of;
The removal or rendering inoperative
by any person other
than for purposes of maintenance,
repair, or replacement,
of any device or element of
·design incorporated into any
new vehicle for the purpose of
noise ...