you have to find the sweet spot, usually its about 2 1/2 turns out (screw the mix all the way in, then turn 2 1/2 turns out) should be good enough to adjust the idle.Ok. I spent about an hour today trying almost every combination. Turn the air mixture a little, then try to adjust idle. It got to the point where the air mixture screw was all the way in, but my motor wouldn't idle. I got my motor down to very low RPMs where it sounded like it was struggling to run. Do you think the issue would have something to do with my clutch instead of my carb? I don't really know, just throwing an idea out since nothing else will really work.
also if its the clutch try lifting the bike up, does the rear wheel spin? if so add a bit of oil to the bushing (gold thing in the middle, 2 drops is enough)
if not then mess with it some more.