I finally replaced the muffler and first section of exhaust pipe and put a kit in the carb. New plugs, points, act like it is chocking down, skips about every 50 or so feet going downhill. but up a slight grade skips only half as often. I had about an inch of old gas in it and good neighbor gave me a gallon or so of fresh non-ethanol gas. Apparently there is a new gas station on Bells Ferry near the I-75 overpass that sells non-ethanol gas. Turning the mixture adjust doesn't seem to make a whole lot of difference. I may not have the gas mixed well yet or enough of the non-ethanol in it.
Thoughts?