I´m in the process of cleaning up my old 200 Yamaha CS5 I bought in 1973 new- it was a ´72 leftover. I rode it in high school and put about 5,000 miles on it. It´s been in a shed or shop for about 35 years. I had it started up about 10 years ago and puttered around the neighborhood. Just drained out the old gas today and will pick up a new battery and see if I can turn it over again. It´s still in good condition with nothing more than a couple scratches. Kind of been in a time capsule for a few decades.