What pipes you are running makes a big difference in the jetting. The more open pipes: Tbike, Sceptres, Epco, SS, Bubs - breathe way better than the TOR series and those with lots of packing in them.
More open pipes = larger main jets.
More airbox mods = bigger mains too.
Good starting points:
TORs and no snorkle - 120,
Open pipes, along with snorkle removed, start at 130.
Airbox drilled, open pipes, no snorkles start at 140.
Freaked with seperate pods and open pipes, start at 150.
