First proper motorcycle; a brand new, in 1981, Yamaha YB100e, in blue of course, unlike this one...
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Oh the RD's, what fun on just 27 horses......................An RD250 found a pic and some general info.........not my bike.
General information
Model: Yamaha RD 250
Year: 1979
Category: Sport
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 measures
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)