Idle Speed/Throttle Actuator - Electronic: Adjustments

1. Remove throttle chamber from engine.
2. Wait at least 3 hours. This step is necessary to bring temperature of thermo element to room temperature.
3. Measure thermo element stroke (L) and room temperature, Fig. 5.

Fig. 5 Thermo Element Stroke Measurement:

4. Check thermo element stroke (L) as shown in Fig. 6.

Fig. 6 Thermo Element Stroke Graph:

5. Align hole A with hole B by turning adjusting screw S1, then insert pin through both holes, Fig. 7.

Fig. 7 FIC Cam Alignment:

6. Adjust clearance C between throttle stopper and throttle adjusting screw to .0244-.0291 inch by turning adjusting screw S2, Fig. 8.

Fig. 8 Clearance C Adjustment:

7. Remove pin from holes A and B.
8. Adjust clearance D to .150 inch by turning adjusting screw S1, Fig. 9.

Fig. 9 Clearance D Adjustment:

9. Rotate adjusting screw S1 clockwise or counterclockwise by Z turns according to the equation shown in Fig. 10, then tighten adjusting screw locknut.