Finally had time to dig into the saw some more. I can't lie I spent probably 2 hours fiddling with it, cleaning the tank, new fuel filter, pulled the carb twice, cleaned it twice. Still had a bog on the bottom end, with erratic idle, and I felt I was always chasing the carb screws to get it to hold a tune.
Found out it was the fuel line. Made a vidja. MAybe it'll help someone. CAn't wait to get up off the ground and see how she handles in a saddle. I've got 200 bucks into this saw. She's pretty rough looking but I've got high hopes for her. Cylinder was cherry. Piston was solid. Hardy any crank shaft side to side play.
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Nice, now you have a climbing saw.