Well here is the bad news. I bought the mower for $25 thinking it would make a nice repair job/hobby. I have now inspected the cylinder bore and it is really scuffed up at the bottom and the rings are completely worn. The cost of a re bore is $100, the cost of new rings and piston about $160. New seals and gaskets - never got that far. A brand spanking new engine would cost less and a complete new mower you could probably get for a little more. I guess they're just not meant to be fixed up anymore....sniff..