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Wide Open Throttle Microswitch

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