Suzuki GSX-R750, Service Manual

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11-22 GSX-R750K2 (’02-MODEL)
←
Incorrect
←
Correct position
←
Incorrect
The LCD indicates 0.4 sec./time, and two times show the correct
position, where it is fixed.
THROTTLE POSITION SENSOR ADJUSTMENT
1. Adjust the engine rpm to 1 200 rpm.
2. Stop the engine and connect the special tool (Mode select
switch) to the dealer mode coupler at the wiring harness.
3. If the throttle position sensor adjustment is necessary, loosen
the screws and turn the throttle position sensor and bring the
line to middle.
4. Then, tighten the screws to fix the throttle position sensor.
09930-11950: Torx wrench
FAST IDLE ADJUSTMENT
The fast idle system is automatic type.
When the fast idle cam is turned by the secondary throttle valve actuator, the cam pushes the lever on the
throttle valve shaft causing the throttle valve to open and raise the engine speed. When the engine has
warmed up, depending on the water temperature, ambient temperature and lapsed time, the fast idle is
cancelled allowing the engine to resume idle speed.
* Fast idle cancellation occurs at the water temperature of 40 – 50 °C or ambient temperature 20 – 30 °C.
If, under the above coditions, the fast idle cannot be cancelled, the cause may possibly be short-circuit in
water temperature sensor or wiring harness.
Fast idle rpm
Standard : 1 800
rpm/Cold engine
Idle rpm : 1 200 ± 100 rpm/Warmed engine
+ 200
– 300
ADJUSTMENT
• Lift and support the fuel tank with its prop stay.
• Start up the engine when engine is cold.
• Adjust the fast idle speed to 1 500 – 2 000 rpm by turning the
fast idle adjusting screw
1
.
• After adjusting the fast idle speed, check the fast idle cancella-
tion at the water temperature about 40 – 50 °C or ambient tem-
perature 20 – 30 °C.
• Set the idle speed to 1 000 – 1 300 rpm by turning the throttle
stop screw
2
.