Throttle Position Switch: Service and Repair

Fig. 86 Throttle valve switch replacement (Typical):

1. Disconnect battery ground cable.
2. Disconnect throttle valve switch harness connector.
3. Remove two screws securing throttle valve switch to throttle chamber, Fig. 86.

Fig. 87 Throttle valve switch adjustment specification chart:

Fig. 88 Throttle valve switch adjustment (Typical):

4. Slowly pull throttle valve switch forward.
5. Reverse procedure to install.
6. After installation, adjust the position of throttle valve switch so that idle switch may be changed from "ON" to "OFF," when engine speed reaches specified RPM, Fig. 87.
To adjust switch with engine off, adjust throttle valve stop screw to throttle valve shaft lever clearance, Fig. 88, to specification, Fig. 87.