If I am not mistaken, this is a Suzuki GS-850 shaft-drive.
I've owned only one motorcycle in my life and that's what it was.
I bought a brand-new, 1979 GS-850N in March of 1980. After several years of really stupid high-speed inanities, I sold it to an acquaintance in order to raise money for a down-payment on a house.
This is how we grow old - one sensible decision at a time.
Shot in the yard of the Dynamite Gardeners, coincidentally.