That's our Bike, Suzuki GS 550 (1978!!!), fixed it from November to december 2002 and it's running great since that time!!!
It did 500 miles, Danville-Medocino-Danville (highway 1), 700 miles Danville-Santa Barbara-Danville (highway 1 and 101), and 1350 miles Danville-Portland(then through Oregon)-Danville in 28 hours!!! It's great!!!