Checking and Adjusting
Basic throttle adjustment, checking/adjustingThe stop screw is set at the factory and should NOT be changed. If the screw position should accidentally change, adjust as follows.
- unscrew throttle stop screw (arrow) until there is a gap between throttle lever 2 and throttle stop screw
- turn screw in until lever 2 just makes contact
To determine stop point of adjustment screw
- place a thin piece of cellophane between throttle lever 2 and throttle stop screw (arrow)
- pull up on the cellophane while turning in the adjustment screw, until cellophane begins to bind
- turn screw clockwise an additional 1/2 turn
- check idle switch and adjust if necessary, Testing and Inspection
- check idle speed and CO content and adjust if necessary, Testing and Inspection