1967 Yamaha CS1 Bonanza 180 (1967)1973 Yamaha CT175 (1973)Yamaha Y20 (Yamaha Y20)Yamaha Y22 (1964)yamaha 67 (1967)yamaha yj1 60 cc (1964)Japanese motorized vehicle-producing company, is part of the Yamaha Corporation. After expanding Yamaha Corporation into the world's biggest piano maker, then Yamaha CEO Genichi Kawakami took Yamaha into the field of motorized vehicles on July 1, 1955. The