Oh sorry guys. Its on my 1998 220 with stock carb, air box lid gone, FMF kg 30 pipe, FMF turbine core 2 silencer, RAD vlave. I raised the needle to the top position, meaning the farthest groove away from the pointy end. The #1 groove.
canyncarvr, I realize how to do proper plug checks, and I think I am doing them correctly. After you said the difference between 4 stroking and brubling, I guess it is running fine, as it seems to only have a rough spot when there is not much load on it. I am thinking of going to a 38 pilot from 40, which I have in there right now. See if that clears anything up. I will also try a richer main, just to be on the safe side.
I hope this is a little more clearer. Thanks for all your help.