Inspect the crankcase breather (pcv) hose in the following procedures:
Refer to “fuel tank removal and installation” in section 1g .
If it is worn or damaged, replace the crankcase breather (pcv) hose with a new one.

Pair system inspection
Crankcase breather (pcv) hose / reed
valve / cover removal and installationDTC “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.
...
Conrod crank pin bearing inspection and
selection
Refer to “engine bottom side disassembly” (page 1d-
49).
Refer to “engine bottom side assembly” .
Inspection
Inspect the bearing surfaces for any signs of fusion,
pitting, burn or flaws. If any, replace them with a
specified set of bearings.
Place the plastigauge axially along ...
Handlebar removal and installation
Removal
Remove the following parts from the left handlebar.
left handlebar switch box (1)
handlebar balancer (2)
grip rubber (3)
clutch cable (4)
Remove the following parts from the right handlebar.
right handlebar switch box (5)
...