ITFD Posted June 13, 2012 Report Share Posted June 13, 2012 Took the bike to the track and did a few hard laps. Pulled both plugs and both are half black and half white. It pulls hard at WOT and down low but midrange seems to dog it. Gonna put 260 mains and 27.5 pilots in it. I'm guessing the two colors are the mismatched jets. Am I on the right track? Quote Link to comment Share on other sites More sharing options...
EvilBanshee Posted June 13, 2012 Report Share Posted June 13, 2012 (edited) leave the mains. Change the pilot and your needle setting Edited June 13, 2012 by EvilBanshee Quote Link to comment Share on other sites More sharing options...
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