I opened up the Ducati 175 today and removed the clutch basket, magneto assembly and kicker and they all look good....also removed the shifter cover and ratchet works nice....the front points cover was also removed and all is good inside....I removed the head and cylinder and found that the piston is NOT stuck, actually it's in great condition with no scores scrapes or signs of misuse, just smooth.....the cylinder is the same , all polish, and flywheels move freely...everything good to this point.
The downside is the tranny is stuck between gears as I cannot get the trans to shift (with or without the clutch installed) to a position that I can kick the unit over....so far, not so good!.....I suppose I could take this farther and split the cases to inspect, and possibly cure, the problem, but I think I'll stop here and let the experts take over.
I am going to list this as available to the exotic motorcycle community....Thanks for your interest, Frank Davis