My 650/810 was bought new by my older brother in the spring of 1977. He was 18 years old at the time and I was just about to turn 16.
I bought it from him in 1982, put on K & N filters, a Yoshimura pipe, Dunlop K81 Tires painted it black with an orange and yellow strip like the Turbo Z1R. I drove the wheels off of it for a few years then sold it, much to my brother's chagrin.
He died in 1989 and I eventually tracked it down. It was a basketcase when I picked it up for $125 from some young guy who fancied the air brush mural of a devil motorcycle rider on the tank. The bike was sad to look and it sat outside my garage rotting even further for the next decade.
My son and I restored it over the winter of 2003-2004. It was nice to spend the time with him and educate him about this uncle whom he never met.
I have over 1000 hours into the bike as it stands today. I will never sell it as it is a link to the memory of my older brother.
Cheers-Colin Firth-Ontario Canada