These vintage Yamaha catalogues show the Yamaha XS1 650 presented at the Tokyo show back in 1969, the Yamaha XS 650 F from 1970-1971, and the Yamaha XS 650 C from 1976.
They were the first big cylinder Yamaha four-strokes, with the XS1 650 originally modelled on the world famous Triumph Bonneville.
Bikes have come a long way since then, but motorcycle lifestyle advertising is still quite similar, when you think about it…Vintage Yamaha brochures