Hard to start
Hey all, I just got done doing a few mods and now my 2007 450 is hard to start, cold/hot, and shoots flames during high rev. The quad has a HMF comp exhaust kit, quickshot3, CFM intake w/ KN filter, JD jetting kit, and stage 1 Hotcams. The new mods are the intake and cams, everything else was on last year. I believe the fix is in the jetting, but wanted to get a second opinion prior to wasting a lot of time. I'd like to start running C12 fuel also so any recommendations would be greatly appreciated.