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Quote from: SOICHIROSFOUR on July 15, 2008, 06:42:01 PMYamaha instead went back to the drawing board and in 1976 came up with a single overhead cam XS360 twin. In 77 they offered both a single cam 360 plus a twin cam XS400. These engines were solid and the 400 stuck around for a long time in many forms. I'm pretty sure the DOHC 400 didn't come out until the '82 Seca and Maxim bikes, and they were only one- or two-year bikes.
Yamaha instead went back to the drawing board and in 1976 came up with a single overhead cam XS360 twin. In 77 they offered both a single cam 360 plus a twin cam XS400. These engines were solid and the 400 stuck around for a long time in many forms.
