Has anyone put a Mikuni 38mm successfully jetted on a 2000 Wolverine?? I have a Big Gun exhaust, KN Filter with the airbox drilled, different cam and valves, high compression piston. I tried for 2 weeks to correctly get the carb jettted. I cannot get rid of the hesitation at low RPM..I've changed the main jet from stock of 32.5 to 50...Still get the hesitation..Should I do anything with the needle?? Help!!