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Throttle Valve

  1. Loosen locknut on stop screw for throttle valve switch and screw out a couple of turns so that it does not touch stop on throttle valve spindle. Check to make sure that switch is fully closed.
  2. Screw in stop screw until it touches stop on switch spindle. Turn screw in 1/4-1/3 turn and tighten locknut. Check that throttle valve switch does not jam or seize in closed position.
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