I need help!! I just got my rebuilt banshee running it floods out of the overflow on the bowl, floods cylinders. I have spark, good compression and definitely have fuel. Cleaned carbs 3 times. Sometimes starts when it is cold. When it runs, it runs great and no issues until i shut it off it will sometimes start, just noticed a cylinder shut down until i messed with the petcock but have a new petcock on the way. Mods are dg fattys, fmf silencers, boyesen reeds, boost bottle, head was decked and have 2 k&n style air pods on the carbs. Has i think stock carbs and jets are 200 main 25 pilot and have needle clip on second spot up from the bottom and mix screw is at 3/4 turn out because that is where it ran best. Any help please! I have the bowls on the right carb and did check that the needles and floats are good.