PrecautionsDTC “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.
...
Fuel injector inspection and cleaning
Inspect the fuel injector in the following procedures:
remove the fuel injector. Refer to “throttle body disassembly and
assembly” in section 1d .
Check the fuel injector for evidence of dirt and
contamination. If present, clean and check for
presence of dirt in the fuel lin ...
Front suspension adjustment
After installing the front fork, adjust the spring pre-load
and two kinds of damping force as follows:
Adjust the
left and right front forks to the
same setting.
Spring pre-load adjustment
Turn the spring pre-load adjuster (1) counterclockwise
fully. From that position (softe ...