vainavic Posted May 5, 2007 Report Posted May 5, 2007 I have a 420 cheetah, dg pipes, 34mm keihin carbs k&n filters timing at +4, I live in grand rapids michigan, I have a 40 pilot jet in, air screw out 2 turns 165 main needle in the middle and the plugs still say its rich, I have \played with the floats(just made sure they sit level) the thing sounds like it wants to start but just rolls over like two or three times. I must have tried everything but want it want to run. I have lots of spark, 145psi with 21cc domes, any help would be great. Jeff Quote
vainavic Posted May 5, 2007 Author Report Posted May 5, 2007 I was wondering what would it run like if one of the powervalves were stuck because that is the only thing i can think that would cause the problem Quote
Handyman Posted May 6, 2007 Report Posted May 6, 2007 I have a 420 cheetah, dg pipes, 34mm keihin carbs k&n filters timing at +4, I live in grand rapids michigan, I have a 40 pilot jet in, air screw out 2 turns 165 main needle in the middle and the plugs still say its rich, I have \played with the floats(just made sure they sit level) the thing sounds like it wants to start but just rolls over like two or three times. I must have tried everything but want it want to run. I have lots of spark, 145psi with 21cc domes, any help would be great. Jeff Your jetting is off and you're way rich on the main jet. down size the main to a 145-150 and the pilot to a 42 clip in 3rd position and the air scrfew out to 1-1.5 turns out. What's your elevation?? That would help too Quote
vainavic Posted May 6, 2007 Author Report Posted May 6, 2007 I live in michigan so I think Im at sea level Quote
jlsparky7 Posted May 6, 2007 Report Posted May 6, 2007 grand rapids should be about 1000 ft above sealevel. Most of michigan is 500-1000. Quote
wesw Posted May 7, 2007 Report Posted May 7, 2007 I have a 420 cheetah, dg pipes, 34mm keihin carbs k&n filters timing at +4, I live in grand rapids michigan, I have a 40 pilot jet in, air screw out 2 turns 165 main needle in the middle and the plugs still say its rich, I have \played with the floats(just made sure they sit level) the thing sounds like it wants to start but just rolls over like two or three times. I must have tried everything but want it want to run. I have lots of spark, 145psi with 21cc domes, any help would be great. Jeff your just pissing up wind with dg pipes, they arent much better than stockers. especailly with a cheetah. jetting i would say like a 50-52 pilot, mid clip of cel, del range needle, 152 mains should be close. for 1000ft. Quote
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