Cos, I don't know for sure but the bike has good oil pressure at a hot idle, ran smoothly with no unusual noises, and the rods have no excessive play.The pattern is consistent all the way around on both cylinders.The ring fit on the pistons is good, better than most from my experience.
I just pulled the cylinders, measured them with a quality verniers, everything seems within a .001 of an inch. I'm headed for the machine shop for a proper measurement with his bore gauges.The customer is not goona be happy if I wack him with a $500 bill plus labor for replacement cylinders and new pistons. That's what happens when you take shortcuts on a high rpm, high output engine(by vintage standards) .The engine can go one more oversize to .060, but depending on the Bike's use, the cylinders may become too thin,distort, and shorten engine life.
