Originally Posted by AZTman

By "pushes out of the carb", you're saying it flows backward away from the fuel intake nipple right? If this is what's happening, it's very likely a pressure problem like Grizz1 was suggesting, and it could be any part of the pressure system. Check very carefully: the header nipple(read Grizz1 notes), fuel tank lid, pressure test fuel tank, exhaust gaskets/seals, replace fuel tubing if it's not brand new.
T