General information
Model:	Yamaha RD 250
Year:	1978
Category:	Sport touring
Engine and transmission
Displacement:	247.00 ccm (15.07 cubic inches)
Engine type:	Twin
Stroke:	2
Power:	27.00 HP (19.7 kW)) @ 7200 RPM
Compression:	6.7:1
Bore x Stroke:	54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel control:	Membrane
Cooling system:	Air
Gearbox:	6-speed
Transmission type final drive:	Chain
Physical measurements
Weight incl. oil, gas, etc:	158.0 kg (348.3 pounds)
Chassis and dimensions
Front tyre dimensions:	3.00-18
Rear tyre dimensions:	3.50-18
Front brakes:	Single disc
Rear brakes:	Single disc
Speed and acceleration
Top speed:	145.0 km/h (90.1 mph)
Other specifications
Fuel capacity:	16.50 litres (4.36 gallons)