Bike was "stuck" when I bought it -- owner thought it had seized, but turned out the rotor magnets had come off and jammed on crank end -- a common problem for theis model. Bike came with new std bore piston and rings, so had it sleeved, which was cheaper than re-coating cylinder (these models originally had a very thin chrome-like coating on the bore, applied electrostatically).
Painted frame, motor, plastic number plate areas, got OEM decals for swingarm, new chain/sprockets. Seat was perfect already. Broke in motor then took for 1-2 rides but my oldest son wasn't interested in riding the XR100 I had built up for him (next page), so I sold it. Riding areas were also getting pretty scarce anywhere near the North Shore of Boston.