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Yamaha YDS-1

From CycleChaos
1959 Yamaha YDS-1

The Yamaha YDS-1 was a 250cc, 2-stroke, twin cylinder, twin carb, streetbike produced by Yamaha starting in 1959 that had a reputation for blowing away 650cc vertical twins during this time.


Further developing on the sporty performance of the YD-1, this new model mounted a 20hp engine on a steel-pipe cradle frame to achieve unprecedented running performance. Features like the first domestic-made 5-speed transmission and combination type instrument panel with engine tachometer caught the imagination of sports riders, who quickly nicknamed it “Japan’s first sports model.”


1959 Yamaha YDS1-R

The YDS1-R was a race kitted version of Yamaha's new for 1959 street bike. These machines were Yamaha's first effort at building a European style road racer, their previous models were more dirt oriented to suit the Japanese racing scene. These machines were the forerunners of the very successful TD/TZ250 parallel twin racing machines that dominated that 250cc racing class for a number of years.