I did notice it had a compression release at the muffler side. I'll try to get some pics later, I have a 10-10 and the SP81 out for some "exercise" on a neighbors Mimosa tree.The 805's were less common than the PM800, neat looking color scheme with the black flywheel cover and extensive use of socket head fasteners. The cylinders are harder to come by than the as they either had the Q port or the coarse threaded compression release above the muffler.
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Mark
I'd say ours may have the same birthday.I have 805 #'s 011468 and 011687
The PM555 is basically the PM55 with the long clutch cover. I have a PM55 with a new piston and cylinder, one of my favorite saws to run with cutting smaller stuff.
Mark
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