Hi I got beat bad on E bay,"yeah it runs great" cracked case caused the adjuster for cam chain to break, in turn wiped out the cam, chain, adjuster, cant forget the plug was stripped. Well I replaced all of that the cam is 0 up,cam lobes down, t on flywheel lined up, got spark, and even put either down the plug hole.No luck will not fire just burbles thats it? Id appreiciate any help please.