Visually inspect the isc valve if necessary.

Throttle body inspection and cleaning
Throttle valve synchronizationClutch cable play inspection and adjustment
Inspect clutch cable play
every 6 000 km (4 000 miles, 12 months)
Inspect and adjust the clutch cable play “a” as follows.
Clutch cable play “a”
10 – 15 mm (0.4 – 0.6 In)
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
  ...
Voltage check
If voltage is supplied to the circuit being checked, voltage
check can be used as circuit check.
With all connectors/couplers connected and voltage
applied to the circuit being checked, measure
voltage between each terminal and body ground.
If measurements were taken as shown ...
Wiring diagram
Refer to “wire color symbols” in section 0a .
For e-02, 19, 24, 51
For e-03, 28
For e-14, 33
...