Grumpy, thanks for the quick reply and the tips. The mower was my fathers so I know the valves were never adjusted as we did not know they needed adjustment. How often should they be adjusted?
The PCV disc flipped over when I took it out so I don't know which side was up. But neither side shows any type of marks or wear. Also the PCV chamber was very clean and the drain hole was open. However I did notice a little oil at the end of the hose going to the air cleaner. Maybe this was from excessive blow by from the worn oil ring. I plan to get genuine Honda parts so will the rings be the type you described? Or do I have to ask for them specificly?
The valve seats and mating surfaces on the valves look good. Should I attempt to lap the valves in or just clean the carbon from the exhaust valve and related areas?
The cylinder looks good. No scratches or other damage. You can still see the factory crosshatching. No ridge at the top of the cylinder.
If I can get my camera to cooperate and if I can figure out how to post pictures I will do so.
