yfz450nz

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About yfz450nz

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  1. JD. have installed your jetting kit, quad has gytr 13:1 piston, Noss billet K&N, no lid, YZ450 exh cam, full HMF system, running race gas, sea level We are having a hard time jetting in the low end - idle. Engine refuse to start using the 45 PJ, reluctant start at 1 turn on the screw 45 PJ, any richer and we have flames out the exhaust big time and crank crank crank............ Starts far nicer with stock 42 and 3 turns, 2 1/2 turns and very hard reluctant starting also ?. Running blue needle 3rd clip. What are we doing wrong here or is the YZ cam simply a hard starter with the electric leg ? Thanks Craig Ridgley