Ok I got a 1986 TRX250R here's my list of mods, bored .030 over, dg pipe,fmf silencer,v-force reeds,k&n filter, 38mm oversized carb. Now Last season I was having some problem's jetting the carb. Around what should my main jet be at ? like 250, cause right now im runing a 350. And what about the needle, what clip should it be on ?