I picked up a Alpina chainsaw, not sure of the model looks like
a Pro70S, has no spark or compression. Stripped it down the problem was the rings were stuck in the grooves , they broke trying to remove them.
Next problem was trying to find 51mm rings (easy if you live in USA)I've ordered 52mm rings I'll make them fit.
[Linked Image from i4.photobucket.com]
The next one is a Stihl S10,has spark but low compression, I removed the muffler, the piston/ cylinder looks ok hopefully it just needs new rings, wont take much to strip the paint on this one lol
[Linked Image from i4.photobucket.com]
[Linked Image from i4.photobucket.com]
cheers2 gmax