4-Stroke Fun: 1977-1982 Yamaha XS400

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Courtesy Motorcycle Classics archives
1976-1982 Yamaha XS400.

Yamaha XS400
Years produced: 1977-1982
Power: 32-36hp @ 8,500rpm
Top speed: 96mph (period test)
Engine: 391cc air cooled, SOHC parallel twin

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