1965 yamaha yds3 250 this is a RARE bike This thing is in excellent shape

If you are looking for a RARE 2 stroke bike then you've found it. This is a 1965 Yamaha yds3 250cc in pretty much perfect shape,chrome is great, aint is great, eat has no rips, tarts right up and leaks nothing and has only 9347 miles on it which is low for a 50 year old bike. These bikes bring big money and arent for sale to often. This bike only has had 3 owners. It comes with a stack of documents from everything done to the bike, ven has the original ad from the paper that the second owner seen and bought it from. This is a real piece of history, his bike is what lead to the yamaha rd bikes. only thing not original are the cafe bars and fender was front fender painted black, t does come with a box of parts with mirrors and blinkers and alot of other original parts.
NADA value is $7600
text or call 262-745-5476
we also work on bikes from a minor repairs to full restoration and aslo buy old bikes
HISTORY OF THE YDS-3
The big development came in 1964 with the YDS-3, hich used Yamaha’s Autolube system. Until then, lmost all two-strokes were lubricated by mixing oil with the gasoline fuel, n ratios that varied from 12:1 (the British Villiers) to 50:1 (some rotary-valve Vespas), epending on the engine. Yamaha’s innovation was to carry engine oil in a separate tank and inject it into the engine, ith a small oil pump driven by the transmission input shaft injecting oil into the intake in a ratio that was determined by engine speed and throttle opening. (There was a catch: because the pump ran off the input shaft, o oil was pumped when the bike was stationary and in gear. This was presumably to avoid over-oiling at traffic signal stops, ut could starve the engine of oil if the engine was revved repeatedly in this state.) In practice, t worked well. So well, n fact, hat before long, ost larger two-stroke Japanese road bikes used a version of Yamaha’s Autolube system.
Additionally, amaha had become involved in racing; Fumio Ito riding the 250cc RD56 might have won the 1963 Isle of Man TT but for a bungled 50-second fuel stop. And when Ito was sidelined by a crash in 1964, hil Read went on to take the 250cc Grand Prix world title. The RD56 spawned the highly successful TD range of production racers that were still winning in the Seventies and continue in vintage racing to the present.
So if 250cc was good, ore must be better, ight? In 1965, amaha introduced its first big stroker, he 305cc YM-1, hich carried the company’s banner for two seasons before being upstaged by Yamaha’s 350cc YR-1. The YM-1 effectively became a footnote in Yamaha’s development, hile the YDS-3 and YR-1 ultimately begat the reed-valve RD250, 50 and 400 series, ulminating in one of the raciest road-going strokers ever, he liquid-cooled RZ350. Because of its relatively short market presence, nd the development of the RD series, he YM-1 was — and is — an oft-ignored model in the Yamaha line.

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