Visually inspect the isc valve if necessary.

Throttle body inspection and cleaning
Throttle valve synchronizationSpecifications
Tightening torque specifications
Note
the specified tightening torque is described in the following.
“Handlebar components” “steering components” “steering
damper construction”
Reference: for the tightening torque of fastener not specified in this
section ...
DTC “c91” (p0500): vehicle speed sensor
circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
Speedometer does not receive signal from the vehicle
speed sensor for more than 6 sec. When the motorcycle is
running. Ecm does not receive signal from the vehicle
speed sensor for more than ...
Spark plugs
Your motorcycle comes equipped
with ngk cr9e or denso
u27esr-n spark plugs. To determine
if the standard spark plug is
right for your usage, check the
color of the plug's porcelain center
electrode insulator after motorcycle
operation. A light brown
color indicates that the plug is correct.
...