I have an 80 XS650 with BE34 carburetors. I just purchased a used carburetor for a damaged one. The old carburetors have an adjustable pilot screw. The replacement carburetor has a brass plug where the others have the pilot screw. There's a small hole in the plug but it doesn't seem to go more than a ¼"into the plug. I've seen photos online of other BS34's with just this plug. Can anybody explain this?
Dave
Dave