Throttle Full Close Switch: Testing and Inspection

NOTE: Idle switch adjustment is not necessary unless it has been tampered with or replaced.
1. Warm up the engine to the normal operating temperature and stop the engine.
2. Connect a tachometer.
3. Disconnect the connector for the slow fuel cut control solenoid valve Fig. 29.
4. Apply battery power to the A terminal of the connector (Carburetor side).
5. Ground the B terminal of the connector (Carburetor side).

Fig. 30 Connecting An Ohmmeter To Terminal C, Idle Switch.:

6. Connect an ohmmeter between the C terminal for the idle switch and ground Fig. 30.

Fig. 31 Idle Switch Continuity Chart.:

7. Start the engine and take the reading of the ohmmeter Fig. 31.

Fig. 32 Idle Switch Adjusting Screw.:

8. If the readings do not agree with the specifications, turn the adjusting screw Fig. 32.