I tore this saw down and discovered the usual wood chip in between the reed valve under the carb. Completely rebuild the carb with a new kit, and install new air filter and fuel line. Put it back together and the compression test showed around 80PSI. Decided to take back apart and reseal the crankcase halves and installed all new gaskets. Closer inspection found that the piston and cylinder walls were scored a bit so I honed them the best I could. Next I put a new piston ring on. Compression looks to be about 90 PSI and it'll need tuned yet with the bar and chain on it doing some cutting. We have life after many tear downs. :)
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