I did a quick search
looking for a way to measure volume of a cylinder.
once read about using trany fluid, and graduated flask, was on a four stroke with two rings though.
will it work on these smaller two strokes?
Pat

If your after your engine size your best bet would be to measure the piston/bore, should be able to reference it from there.

With the piston down anything you pour into the cyl. will run out of the ex port.
Dave

that's the way it looks, bore and stroke is about the only way.