Hey Guys, I just rejetted my carb (CV40 off a 2005 FXD) and I went to adjust the air fuel mixture and to my surprise, the stupid screw was completely seized! I've never head of this happening. So, in my attempts at getting it to move, the top fo the brass screw snapped and now I can't move it at all because there isn't a slot for the screw driver. Am I toally screwed? - no pun intended...

 

You could try a thread remover....

 

Tiny drill bit and a screw extractor. Lightly tap on it as you twist it out. Even put some wd40 on it. Just a couple ideas. Your not "screwed". It just takes timetable be sure you don't jack that carb body.