1975 Last days of the four-strokes?

To put some context to the following year,Teuvo (Tepi) Länsivuori left Yamaha and joined Barry Sheene in the Suzuki works team. The experienced Yamaha test rider Hideo Kanaya came back to Europe to support Giacomo Agostini in the 500 and 750 class. Frenchman Michel Rougerie was competing with a special four-carburettor twin Harley-Davidson. The already pretty-full grid was completed with a hoard of twin and four-cylinder private Yamahas and some remaining König fourcylinder bikes.

Sheene’s 1975 season started in possibly the worst possible way. Actually, it began in possibly the world’s most famous ‘bad day’ way when