Still no frame back from the coaters. I knew the piston had issues from looking into the exhaust port after I removed the muffler. So I pulled the cylinder off. So easy in a 2 smoker!. This one suffered a classic lubrication failure. The rings are not stuck, it is clean under the crown, dome is fine. It was worn when it happened. Wear above the top ring on the exhaust side. Evenly scored on both sides. Still has visible machining marks on the areas not scored if you look closely. Either the oil pump quit, or they ran it out of oil. Oil tank was full of oil. I think they ran it out of oil, seized it, then filled the oil up, but couldn't get it to run. Doesn't matter, I just ordered a cylinder kit, and pipe. Had to pull it apart to make sure the wrist pin size.