Bax, I need a replacement carburetor for a Magnum 52. I know an OS 4D and 40B carbs will work, but does the 40G from the OS 46AX have the screw holes in the same location? I know that the throat size is the same, but if the screw holes are in a different location, it won't tighten down with a good seal. Basically, are all of these carburetors interchangeable? And yes, I'm wanting the 40G because it costs less at Tower.

The carbs for the O.S. Max .46 FX and O.S. Max .46 AX are interchangeable.