I was having my Evo with the Mikuni TM24 running well @ 180 main jet, needle clip @ top, and the take off jet (dunno how you call it) @ 17.5 and the air screw 0.5 open.
I could've gone to 170 or 160 main probaply, but I didn't have them at that time so I don't know, but it was running fine already anyway like that.