RE: saito rebuild?
Lee can't fix that one. I know. He has repaired two that I sent him. This one has the whole exhaust area torn out. Lee makes a beautiful brass adapter that fits in the old exhaust opening but it is just for engine that have had the threads stripped. One of the ones I had repaired did have about a 1/4 of the exhaust torn out but there was enough left that he could repair it using the brass adapter. This one shown has the whole opening torn away. Nothing left to hold the adapter.