Well, bought a carb kit and went through the carb. Even removed Welch plugs which is something I have never done. Then checked valve lash. Exhaust was perfect at .012. Intake calls for .008. It was around .007. Intake valve had lots of carbon on top of it.
Took intake valve out and cleaned it. Had a nice shinny ring already on the valve and seat in the block. I lapped these anyway. Took a little off the end of the valve with rough sandpaper. .008 feeler gauge would go in but a hair tight. .009 would not go in. I left it at that.
Exhaust valve had no =93shinny ring=94 on the valve or seat. I lapped these as well.
Got it started and adjusted the jets on the carb. I feel there can be some more adjustment. Is there a way to get a good =93tune=94 on these carbs?
One thing I did notice is a couple of times while idling I heard a =93whine=94 for a second. It could be vibration from the times on the garage floor I don=92t know. Almost sounds like a bearing? Not sure what it could be but only lasted a second.
Anyway there is my update. I guess I will play with the carb some more, change the oil in the tiller and motor and put it in the shed for spring. One thing I have not done is operate the tiller under a load. If it is working now, will it be ok once it is tilling ground?
Thanks for all your help!