The ring is fairly new. It is a Bowman ring that I had installed on another Ryobi but I chipped the piston on it after about two tanks of fuel. It is still fairly new. The exhaust is still a little wet I think. This was the first time the ring had run on this engine. So I am sure it still needs some breakin. The cylinder and block are not new. This engine as converted with the original piston ring before and flew for while. I dont know how long as I got the engine and airplane second or third or fourth hand. You suggest leave alone for while.


Jim