Re: throttle question
Yeah, getting the hole drilled in exactly the right distance from the end of the bar is a little tricky. Sounds like your hole might be a little to close to the end of the bar. When that happens there's a little side to side play in the handle grip. One way to take up the slack, aside from drilling a new hole, is to try putting a washer in the grip before sliding it on the bar. The washer will take up some of the slop.
The standard carb for a Flying Horse is a NT.