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Wide Open Throttle Micro Switch

  1. Remove air cleaner and carburetor. Connect ohmmeter to wide open throttle (WOT) micro switch. See Fig 1 . Check that resistance between micro switch terminals is infinity.
    Fig 1: Connecting Ohmmeter to WOT Micro Switch
    G42232
  2. Open throttle valve gradually until ohmmeter indicates zero. 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 micro switch lever to adjust clearance. See Fig 2 .
Fig 2: Adjusting WOT Micro Switch Lever
G42233