1959 yamaha yds1r "asama racer"
Image kindly provided by www.ravemotorsport.com.
1962 yamaha yd3
this is one of the first yamahas available in the usa in the early 60's. it is a 2 stroke 250.
Very rare Yamaha YDS-R Factory Race Bike, 2006 Legend of the Motorcycle 1st place. Borrani aluminum rim with ORDANI magunesium racing brakes, Polish Stainless spokes by Buchanans. Mikuni remote float bowl racing carburetor. Maguneto, Yazaki special racing tachometer.
1963 yamaha yds2
Yamaha YDS2 Sports 250
The Yamaha YDS2 was quite a revelation when first introduced, there was no Suzuki Super Six only the T10 which was not popular. The YDS2 was a fast sports motorcycle, in it's time, so very few, in this condition are still around today.
1964 yamaha yds3c
1969 yamaha yds6-c
1971 yamaha yds-7
the yds7 differed greatly from it's yds6 predecessor. one of the most important changes was the use of horizontally split crankcases. these had already been used by the 350cc yr series since its introduction in 1967. the position of the final drive chain also changed from the right to the left side. this was due to the re-introduction of the pushrod clutch release mechanism. also, the over complex gear selection mechanism was done away with to be replaced by a rotating drum mechanism that was similar to the ones already in use on the yr range of bikes. a complete new set of gearbox ratios was also used. the frame was redsigned with particular attention paid to the rear sub-frame and the gusseting around this area. the styling was also heavily altered with the engine cases being painted satin black with two horizontal stipes on either side being polished. the barrels and heads were also painted black and the sides of the heads and the edges of the fins were polished. the styling was common to most yamaha's (as3, cs5, ds7 and yr5)at this time and the range was known as the europa range.
1971 Yamaha YDS6
1972 yamaha yds-7
the little yamaha yds7’s were little gems in their day, the building blocks for the rd250’s and the later rd250lc “elsie” which are famous for launching a thousand racing careers, in the one make series. with 24hp being served up at 7500rpm they were as near to racing bikes as you could get and they were in fact raced quite successfully, this little air cooled 250cc twin was a 5 speed machine with drum brakes at the back and the front. the engine numbers were the same as the frame numbers so it is easy to see if the engine has been changed.
1972 yamaha yds7
Yamaha YDS7 race bike
This bike is loosely based on Yamaha’s first production race machine with horizontally split crankcases, the TD3.