Well I went and put a new post on RCU and who answers me back but TimC, I should have just started here to begin with, LOL Anyway here was my post.

a friend of mine just bought an old trainer plane hanging on the ceiling it came with an OS 60 FP, this motor was working great,,,, I'm talking 1 flip she's running, it was put on a 40 sized trainer and cooks this plane along no problem.

The problem......... My friend,, very new to the hobby,,, 3rd week,,,decided to clean his motor after a dead stick landing into the high weeds and had tangled a bit with some dirt and grass, nothing major, but as he was cleaning,,, he touched, or should I say Turned the forbidden factory air screw when the engine wasn't running like he remembered, My fault really, everyone I train the very first thing I tell them is to never touch that air screw, his motor was running awesome right from the first time out with it, so I never mentioned it,, thinking he wouldn't touch anything yet with out me being there,,, I was wrong... we have no manual and I'm sure now that I know he turned it, we can get it figured out, but it would be a little quicker if someone knew the settings for this screw, Fully closed,, a half turn out ?? 1 1/2 turns out?? anyone with a little info on this would be very helpful...

Once again this Thread has proved to be the absolute best thread on the site,,,, Thanks kids..