I have a 66cc ht engine with a Puch 50cc high compression head and Arrow Cycles "Torquer" pipe. I pulled my head and checked my cylinder, and there are no scratches. The engine wont fire, and there is oil seeping from my head and my base gaskets. I have properly torqued my head bolts, yet I dont have compression. With the bike standing, I can push the engine with the clutch lever released, even though I know my clutch is properly adjusted. The engine does turn over when I try to start it, but does not fire. With the oil seeping from the base gasket - need a new gasket maybe? I purchased the engine new in April 2011. Anyone know if the base gasket should be replaced every so often, or have any other ideas? I'm at a loss.