Just put some Boyesen power reeds and a 142 main in my 2001 220.Needle is 2nd from top,pilot is 42,a/s is 1 turn out.I have stock exhaust/silencer.It also has uni air filter and lid removed.The temp. today was about 90 F.humidity same.Seems to run very good.Am I in the ballpark,or too lean in the main?Will attempt a WOT reading Sunday.