Hello all, beginning modifications to my 920. I have the Mikuni carbs. I have just replaced my exhaust (www.macperformance.com)and am choosing an appropriate slip-on muffler and air cleaners. Problem I'm having is that replacement main jets for the carbs are not available in the US, thereby making re-jetting impossible. Does anyone haver 2 sets of varying sizes that I could purchase? Thanks to all. Bob