YAMAHAYD-2 1958 - 1961

　　YD-2, the first Yamaha motorcycle which had an electric start, had a 250cc, twin cylinder, 2-stroke engine and a monocoque frame.

YAMAHAYD-2 1958 - 1961 Specs

Type:	Twin cylinder, two stroke, air-cooled
Displacement:	249 cm3
Bore X Stroke:	2.1x2.1 in OR 53 mm
Compression Ratio:	-
Horsepower:	14.5/6000 KW(hp)/RPM
Torque:	0/5000 lb-ft/RPM OR 0 Nm/RPM
Fuel System:	Carburetor
Gearbox:	3-Speed
Clutch:	Wet multi-discs
Primary Drive:	-
Final Drive:	Chain
Frame:	-
Front Suspension:	Telescopic forks
Rear Suspension:	Swing arm
Front Brake:	Drum
Rear Brake:	Drum
Overall Length:	-
Overall Width:	-
Seat Height:	-
Wheelbase:	-
Ground Clearance:	-
Weight:	304 lbs OR 138 kg
Fuel Capacity:	-
Front:	2.50 -16
Rear:	2.50 -16
Power pack:	-
Nominal Capacity:	-
Maximum Capacity:	-
Charger type:	-
Charging time (normal):	-
Charging time (quick):	-
Range:	-