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YZR500(0W20)

View machine data for past races Yamaha has competed in.

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500ccYZR500(0W20)(1973-74)

Yamaha's first GP500 factory machine

This was the first YZR500 and it had been developed simultaneously with TZ750. It mounted a liquid-cooled 2-stroke, in-line 4-cylinder, piston reed valve engine on a chromium molybdenum steel pipe frame with triple disc brakes. J Saarinen rode it to a debut win the French GP, the opening round of the season. The next year, 1974, a Monocross suspension was added and Giacomo Agostini rode it to two GP wins and Teuvo Lansivuori to one, giving Yamaha the GP 500cc Manufacturer's title.

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