Yamaha YD-2

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1958 Yamaha YD-2.jpg
Yamaha YD-2
Production 1958
Class Naked
Twin cylinder, two stroke, air-cooled
Bore / Stroke 53.3mm x 53.3mm
Horsepower 14.48 HP (10.8 KW) @ 6000RPM
Transmission Gear box: 3-Speed

Final Drive: Chain

Clutch: Wet multi-discs
Suspension Front: Telescopic forks
Rear: Swing arm
Brakes Front: Drum
Rear: Drum
Front Tire 2.50 -16
Rear Tire 2.50 -16
Weight 138.0 kg (wet)
Recommended Oil Yamalube 10w-40
Related Yamaha YD-1
Manuals Service Manual

The Yamaha YD-2 was a Twin cylinder, two stroke, air-cooled Naked motorcycle produced by Yamaha in 1958 featuring a pressed-steel, monocoque frame. Claimed horsepower was 14.48 HP (10.8 KW) @ 6000 RPM. It was the first Yamaha with electric start. It was basically just a Yamaha YD-1 with electric start added.

Engine[edit | edit source]

A 53.3mm bore x 53.3mm stroke result in a displacement of just 249.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 3-Speed transmission. Power was moderated via the Wet multi-discs.

Chassis[edit | edit source]

It came with a 2.50 -16 front tire and a 2.50 -16 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Swing arm.