Note. Accel-drum unit must be adjusted whenever accel-drum unit, throttle chamber or rod is removed or replaced. Rod must be replaced whenever removed. Ensure rod couplings are coated with grease before installing rod.
- With rod installed, loosen lock nut and adjusting screw. (Scheme 1) Manually rotate accel-drum unit until throttle valve in throttle chamber is fully open, and hold unit in this position.
- Note if stopper lever contacts adjusting screw. If stopper lever contacts adjusting screw, rotate adjusting screw until stopper lever does not contact adjusting screw.
- Rotate adjusting screw until it just contacts stopper lever. Rotate accel-drum unit so throttle valve is closed. Rotate adjusting screw 3 full revolutions clockwise. Tighten lock nut to 36-48 INCH lbs. (4-5 N.m)
