Doug,
I have a couple of these engines. They do not come from weedeaters, but from gas powered drills. One I have started to convert by milling off the bottom of the cylinder and turning the top of the piston to raise the compression. The other one is still as it came from the drill. The piston looks very good and looks to have very little time on the engine. If you are interested, email me direct. Dean
[email protected]