My Tomos A-3 was recently re-honed by a local machine shop. It had be sitting outside exposed for WAY to long, and the upper surface (where the head bolts on) had somewhat rolled at the edge, so the piston couldn't move through the cylinder completely. I purchased a new piston, and had the cylinder rehoned.
I can't seem to find reference to any gaskets for this motor on any website, but I'm starting to think that maybe I'm either missing a gasket, OR the machine shop bored the cylinder too much. My compression numbers are only 90 lbs. Do I need a head and base gasket? If I do, this number will probably go up some.
If not, I'm guessing I need a new cylinder. Does this sound right?