this is a little late in this thread but thought i would note, I purchased the motor.
I was expecting a decent motor considering i was told it was rebuilt around 8 hours or so ago, needless to say the left side piston is scored terribly bad, This most receive a new bore, along with missing an o-ring in the cool head, there was very little compression in the motor and could turn the engine over by hand very easy. The cylinders have never been ported, the crankshaft had never been trued and welded, i found a bearing rolling around in the crankcase. the carbs had not been bored out to 28mm like stated. The stator is bad, i do not know if the stator could of went bad during shipment or not. but the fact that these problems occurred is very discerning.