retoocs555 said:It's an R-17 or an R-19 but it comes down to what type of ignition the saw has. Electronic ign = R19, Points = R17. I have no doubt about it. It is definitely an older R series saw. The larger 65cc, (R20 and up) had black and yellow. The 55cc R15-19 were all yellow.
I'd bet lunch that its an R17.
There's lots of reasons why this saw could feel more powerfull than your S65.
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