Yeah those screws day were numbered. I had them off a week ago and they were a bitch to get off. I ended up having to use vise grips to get a few out.
While searching for jetting kits I ran across a thread where someone suggested doing that AND gave the dimensions. i had an open order with McMaster Carr (which is the greatest store ever in my humble opinion) and I think a bag of 100 was about $6.
I'm excited to try it today knowing that the jetting could have been fine but without the boots tight obviously is not going to run. Surprised it wasn't backfiring. My KTM 950 would launch a fireball and explode if the carb boots weren't tight
Pics and a report hopefully later today