Dont ya hate that? It's always a can of worms. In my case its a 55 gal. drum of worms. Its always the stupid $2.00 problem after I tear up $200.00 worth of stuff. Good luck man. I'm with the other guy, it's always better to be safe than to be sorry and a $30.00 gasket set is a lot cheaper than a new motor. But, then again like he said, could be a plug wire. I have over the years made myself a check list to go over for the small stuff to eliminate the problem. That came with age. I believe its called wisdome. Or maybe just sick of spending $$$$ on my bad ideas. Good luck!