Throttle Body: Adjustments

Basic Throttle Adjustment:

1. Disconnect the throttle pulley link arm. Release the lock nut.
2. Loosen the adjustment screw until the throttle is fully closed.
3. Turn the adjustment screw clockwise until it just touches the link arm and then one additional turn. Tighten the locking nut.

NOTE: It may be necessary to loosen the throttle switch to center the valve, prior to adjusting it.

Setting Throttle Switch:

4. Check the throttle switch by opening the throttle valve slightly and listening for a "click".
5. Adjust the throttle switch by loosening the retaining screws (3 mm screw). Turn the switch slightly clockwise. Turn switch back again until "click" is heard. Tighten the retaining screws. Recheck the setting.

Checking Throttle Pulley:

6. Check for smooth operation of the control pulley and cable.
7. Adjust the throttle cable so it is stretched at idle, but does not affect the control pulley position. At idle the control pulley should touch the stop.
8. With the accelerator pedal fully depressed, the control pulley should touch the full throttle stop.

Checking Link Rod:

9. Connect the link rod.
10. Place a 1 mm (0.04 in) feeler gauge between the control pulley and idle speed stop. Clearance between the lower adjustment screw and the end stop should now be 0.008 in ± 0.004 in (0.2 mm ± 0.1 mm). Adjust link rod as needed.

Checking Kickdown Cable:

11. Check the kick-down cable (if equipped) adjustment by pulling the cable out approx. 0.375 in (10 mm) and release suddenly. You should hear a metallic "click" from the gearbox.
a. If cable is over tight, no sound will be heard.
a. If cable is to loose, no kickdown action will result.
Adjust cable as necessary.