Anyone have an idea why when I turn on my gas petcock, the gas runs right through my carb? Draining out that little hose on the bottom of the bowl and onto my garage floor. I took off my tank to check my valves but that should not have caused a problem. I did rinse off the under tank area before I removed the engine cap. And I did probably get water in the carb because I forgot to tape up the gas intake on the carb, but that was a week ago and I doubt there is any water in there. I can't figure it out. Anyone?