I don't know whats going on here! I'm rid'n along and my bike starts stalling everytime I let of the throttle. Then when I stop, it starts pissing all the gas out of the hoses from the carb. I open the gas tank and it decompresses like it had 20lbs of air in it! Then, it runs great till it builds pressure up again, and starts the whole process over again. Anybody have any clues?