robin has a very good idea there...is the pipe actually sliding out of the holder at the stinger??? or just popping off at the header?? also to prevent loss of the throttle (and in your case would have saved the barrel) take one of them brass control horns with the allen screw like whats on the pipe mount wire..drill a hole big enough in the throttle arm so the bolt can go through,,,slide the bolt (may have to be a touch longer) through the arm from the backside,,,then slide your brass control horn on your throttle cable and screw the whole deal together using blue loctite..be sure when the bolt is tightened down on the cable that the control arm can pivot freely....hope you understand this jibberish,,,if you dont i can post a pic...