TAMIYA Motorcycle Series No.75
About the Yamaha YZR-500 Taira Version
To challenge the 1983 season, Yamaha brought out the YZR 500(OW70). Starting with a two-cycle, water-cooled, four-cylinder engine, the YZR500 was equipped with an abundance of innovative mechanics. Its four cylinders were divided into an upper and lower group consisting of two cylinders each.