Ignition system diagram
Refer to “wire color symbols” in section 0a .

Ignition system components location
Refer to “electrical components location” in section 0a .
Drive mode selector descriptionDTC “c28” (p1655): secondary throttle
valve actuator (stva) malfunction
Detected condition and possible cause
Detected condition
Possible cause
The operation voltage does not reach the stva.
Ecm does not receive communication signal from the
stva. Stva can not operate properly or its motor locked
Stva malfunction.
...
Ignition coil inspection
Refer to “electrical components location” in section 0a .
Ignition coil primary peak voltage
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect all ignition coil. Refer to “ignition coil and spark plug
removal and installation” .
...
Drive chain
This motorcycle has a master link
type drive chain. We recommend
that you take your motorcycle to
an authorized suzuki dealer if the
drive chain needs replacing.
The condition and adjustment of
the drive chain should be checked
each day before you ride. Always
follow the guidelines for ins ...