I took it back apart and low and behold only one and a half rings. Scared and gouged piston and head. U.S.A Bike motors said there is no way a ring can break? But, they are sending me a new piston,rings,and head gasket. I guess I'll put my old head (not slant) back on. Also, I drilled my 6mm holes out and put 5/16 bolts in. Much better. Gotta love these chinese pot metal engines!