Nope, only the typical used-bike issues: how does it run, does it smoke, does it clatter, tires, chain, sprockets, etc.
This was Yamaha's answer to the Honda 350/360 twin, and their effort to develop an econo-bike OTHER than a two-stroke, which were being phased out. Within a year or two, the 360 grew to a 400, and lasted until the mid-80s recession forced all the manufacturers to dramatically cut their line-ups back.
There were several versions: some had disk brakes, some had drums; some had cast wheels, some had spokes; some had electric starts, some didn't.
Good luck with it,
Kirk