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Wide Open Throttle Microswitch
- Remove air cleaner and carburetor. Connect ohmmeter to microswitch. See Fig 1
. Check that resistance between microswitch terminals is infinity.
Courtesy of GENERAL MOTORS CORP.
- Open throttle valve gradually until ohmmeter indicates zero ohm. Using a vernier caliper, measure clearance between throttle valve and primary carburetor bore.
- Clearance should be .28-.33" (7.2-8.4 mm). If clearance is incorrect, bend WOT microswitch lever to adjust clearance. See Fig 2
.
Courtesy of GENERAL MOTORS CORP.