Description
The YD2's arrival in 1959 marked an important development for Yamaha's 250 twin, which now featured an entirely new engine, with crankshaft mounted clutch. At the same time a tubular cradle frame modelled on that of the successful Asama racers, introduced here in 1962, the YDS2 represented an evolution of the YDS1 rather than an entirely new model. It was one of the first Yamahas to be widely exported and received a rapturous reception in the UK, where Motorcycle Mechanics magazine hailed it as 'one of the best in the world'. With a top speed of 80mph and capable of 66 miles per gallon, the refined YDS2 had the measure of all the contemporary UK-built 250s. Stylish and fast, it was an enormous success, helping to establish Yamaha's reputation for offering more performance per £ than any of its rivals.
As a successor to the YDS-1 that became famous as a base machine for road races and scramble races. The engine was developed from the acclaimed 2-stroke, 2-cylinder engine of the YDS-1 to deliver an extra 3 hp. To further boost performance in sport riding, a twin-leading front drum brake with dust and water resistant designs and other features were adopted.
• Overall length × width × height: 1, 990mm × 615mm × 935mm
• Weight: 156kg
• Engine type: Air-cooled, 2-stroke, in-line 2-cylinder, 246cm³
• Maximum power output: 16. 9kW (23. 0PS) / 7, 000r/ min
• Maximum torque: 21. 0N･m (2. 14kgf･m) / 6, 000r/ min
This example a 250 Twin Cylinder, Yamaha YDS2. 1963 Chassis No. 63-Y14-4211 Engine No. D6-4211 Original Engine and frame numbers match. The Engine has been fully overhauled with new crank shaft, seals, piston, cylinder etc. It starts runs very well but requires a new battery. An original paintwork survivor. Viewing and inspection recommended and welcomed by appointment here in Cambridgeshire for any serious buyers interest.
