As soon as I let off the gas it dies, the momentum bump starts it and it will run all through the gears no problem. Also, it will not kick over. I just rebuilt the carb bc it has never been done on this machine. The problem continues tho. This is my first time rebuilding a carb, but I am fairly confident. Quad is 2004 injection and bone stock. My dad is talking mentioned something about veturi, I made several attempt to find more information on this with no luck.