Last week I blew a head gasket, drove about a mile to get closer to a road, while watching the temp gauge. I dragged the sled home with my wife on her Polaris. Now I replaced the head gasket, cleaned all the studs & and got new nuts and lock washers. Now I am ready to fire it up but the piston is coughing up lots of white foam. It bucks a couple times but never really fires up. I removed the plugs took the propane torch to dry the plugs and just showed the flame to the plug hole. BOOM it shot fire from the cylinders. I have repeated this procedure many times with the same result. My arm is getting longer from pulling on this stupid thing. If only there was case drain plugs, this would be easy.