I had a plate compactor at work that my customer couldn't get running, checked spark,fuel, air and then compression. Had forty pounds. Took a squirt can and put a little oil on top of the piston, checked comp and had 100 pounds!put plug back in and fired right up. Ran for two minutes or so pulled plug checked comp back to forty. So what is disappointing is you don't even think about rebuilding these engines with parts and labor your better off ordering new! What a throw away world we live in! If this was a k series 20 years ago no question it would be rebuilt!
My two cents!