MotoGP Fan Zone on Twitter: "#15DaysUntilQatar (7+8) Barry Sheene on Yamaha and Kork Ballington on Kawasaki, 1981 500cc Grand Prix http://t.co/kRFoKuEEeQ" / Twitter
Yamaha mark 60 years of GP racing as the second most successful manufacturer of all time | MCN
7_Sheene1_TT24jun81 | (slidescan) Barry Sheene on a Yamaha 5… | Flickr
Bonhams : Barry Sheene's Akai Yamaha race helmet, 1981-82,
Grand Prix Preview by Barry Sheene 1981 (audio only) - YouTube
バリー・シーン - Wikipedia
Barry Sheene, Transatlantic Trophy, Mallory Park, 1981 | Flickr
British Motorcycle road racer Barry Sheene, pictured at home. 25th May 1981 Stock Photo - Alamy