Well, when I pulled the piston it was pretty mashed up. The cylinder looked bad, but I was able to dissolve most of the aluminum off with acid. Then I honed it and got it pretty smooth.
I ordered a new piston, but I wasn't sure it would work, since I had no specs but diameter.
I put it back together today and it kicked over first pull, then started first pull when I turned the choke choke off. I let it idle for a minute and the idle seemed really smooth. It has never started so cleanly since I owned the saw. I think i should pressure test the crank case before I run it too long though.
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