The length of the A-20108 carburetor throttle lever stop screw was changed from 1⁄2 inch to 5/8 inch.
This change was made at the same time that the lever on the A-9581-A carburetor throttle shaft and lever assembly was changed from a brass to a stamped design lever.
The old design 1/2 inch screws are to be used with the brass lever only.
The present design 5/8 inch screws may be used with both type levers.
