Inspect the cam chain guide in the following procedures:

Cam chain guide / cam chain tensioner
removal and installation
Cam chain tensioner inspectionRear suspension assembly construction
Rear shock absorber mounting bolt (upper)
Rear shock absorber mounting nut (lower)
Cushion rod mounting nut (front)
Cushion rod mounting nut (rear)
Cushion lever mounting nut
Swingarm pivot nut
Swingarm pivot boss nut
Swingarm pivot shaft
Swingarm ...
DTC “c31” (p0705): gp switch circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
No gear position switch voltage
Gp switch voltage is not within the following range.
Gp switch voltage > 0.6 V
Gp switch circuit open or short.
Gp switch malfunction.
...
Oil cooler / oil cooler hose removal and
installation
Refer to “electrical components location” in section 0a .
Removal
Turn the ignition switch off.
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Drain engine oil. Refer to “engine oil and filter replacement” in
section 0b .
...