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Yamaha YD-2 250

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Make Model

Yamaha YD-2

Year

1958-60

Engine

Two stroke, piston-port, parallel twin

Capacity

247 cc / 15.0 cu-in
Bore x Stroke 54 x 54 mm
Cooling System Air-cooled
Compression Ratio  

Induction

Single carburetor

Starting

Kick

Max Power

14.5 hp @ 6000 rpm

Max Torque

4.1 kg-m @ 5000 rpm

Transmission

5 Speed 
Final Drive Chain

Front Suspension

Telescopic forks

Rear Suspension

Swing arm

Front Brakes

Drum

Rear Brakes

Drum

Front Tyre

2.50 -16

Rear Tyre

2.50 -16

Wet Weight

138 kg / 309 lbs

Fuel Capacity 

A Brilliant Dynasty

Yamaha was a fast learner and, within a few years, its twin had cast off all traces of its origins and had given rise to a motorcycle dynasty.

The first was the electric start YD2. then came the first dedicated sports models, the YDS1 and the YDS2 (the first model exported to Europe). Yamaha competed in its first French GP at Clermont-Ferrand in 1961 and returned in 1963 with a succession of famous riders - Vesco, Read, Redman, Ivy, Saarinen, and Agostini.