I had one of these 83/ 900cc.
A GREAT tour ride bike with plenty of get up and go!
I Loved that bike. No maintenance and a very smooth ride.
I think they did poorly as it was a Sport/Tour combo and most riders went, with a crotch rocket or a full tour instead.
It was a great bike for me, 100s of miles on weekends either running with the bulls or slipping slowly up Chuckanut Drive nice and slow.