Suzuki VL1500K5 Supplementary Service Manual page 114

• Turn the ignition switch ON.
• Open the secondary throttle valve fully by turning it with your
finger.
• With the secondary throttle valve held at this position, mea-
sure the output voltage of the TP sensor as shown.
• Calculate the voltage difference between TP sensor output
voltage at idle and TP sensor output voltage with the STV full
opened.
Example: TP sensor output voltage with the STV fully open
Minus TP sensor output voltage at idle is 0.08 V
STV fully open
Idle -
" TP sensor output voltage variation: 0.064 – 0.096 V
• If the voltage variation is out of specification, turn in or out the
fast idle adjust screw 4 to adjust the voltage to specification.
'
The fast idle screw is factory-adjusted at the time of
delivery and therefore avoid removing or turning it
unless otherwise necessary.
• Cool down the engine to ambient air temperature and start the
engine to check the fast idle rpm comes within the specified
rpm.
" Standard
Fast idle rpm: 1 400 – 2 000 r/min (Cold engine)
Idle rpm : 1 000 ± 100 r/min (Warmed engine)
• If it is not at the specified rpm, the cause may possibly be
short-circuit in oil temperature sensor or wiring harness or
STVA.
1.20 V
1.12 V
0.08 V
VL1500K5 ('05-MODEL) 113