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Throttle Position Sensor > < Throttle Full Open Switch|Testing and Inspection|Page 2037
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Fig. 14 Wide open throttle micro switch adjustment

Diagnostic Code 21, Wide Open Throttle Microswitch

1.

Remove air cleaner and carburetor.

2.

Connect ohmmeter to switch as shown in Fig. 12. Resistance between terminals should be infinite.

3.

Open throttle gradually until ohmmeter indicates zero ohm. Measure clearance between throttle butterfly and carburetor bore, Fig. 13. Clearance
should be .29 - .33 inch (7.2 - 8.4 mm). If clearance is out of range, adjust by bending lever, Fig. 14.

Throttle Position Sensor > < Throttle Full Open Switch|Testing and Inspection|Page 2037