Ok, so I changed the spark plugs first thing this morning. The front ones pissed me off. Held my breath, hit the start and bang, first click, started like a dream, purred like a kitten, till the fuel ran out. So i take off the fuel filter, and there is nothing coming out of the line from the gas tank. SOOOO, now i'm guessing that the broken off petcock is turned to off, and no gas is coming from the tank. Blah. I'm now in the process of removing the petcock. Any suggestions?