I just replaced all of the seals and gaskets and whatnot in the petcock about 6 months ago. I was riding about 10 miles a day going to work and back and no issues unless I left the petcock in the "on" position when I wasn't riding it. It would flood the carbs and leak out of the petcock. Now I am doing about 30 miles each way and my petcock started leaking real bad. Could it be that the petcock has gone bad or is it more likely just one of the new gaskets were bad?