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Yamaha Specifications

Yamaha RD250 (1976)

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Yamaha RD250 (1976)

At a glance

Capacity
247 cc / 15.0 cu-in
Power
30 hp / 22.3 kW @ 7500 rpm
Torque
21 lb-ft / 2.9 kgf-m @ 7000 rpm

The full picture.

The Yamaha RD250 is a classic motorcycle from 1976 with a two-stroke, torque induction parallel twin engine, and a capacity of 247cc. The bike features an air-cooled system and a compression ratio of 6.7:1. The autolube lubrication system is complemented by Mikuni VM28 SC carburettors and battery/coil ignition with breaker points. The machine has a maximum power of 22.3 kW at 7500 rpm and a maximum torque of 2.9 kgf-m at 7000 rpm. The transmission is a 6-speed, wet multi-plate clutch, and the bike has a final drive system of a chain. The front and rear suspension systems are telescopic forks and dual shocks, respectively. The front brake is a single disc, and the rear brake is a drum. The bike’s wheels feature a 3.00S-18-4PR front tire and a 3.50S-18-4PR rear tire. The dimensions of the bike are 2030 mm in length, 830 mm in width, and 1085 mm in height. The wheelbase measures 1325 mm, and the dry weight of the motorcycle is 152 kg. The fuel tank capacity is 16.5 liters or 4.2 US gallons. The Yamaha RD250 is a classic motorcycle that continues to be admired by enthusiasts and collectors alike.


Technical specifications:

Make Model: Yamaha RD 250

Motorcycle technical specifications
Year1976
EngineTwo stroke, torque induction, parallel twin
Capacity247 cc / 15.0 cu-in
Bore x Stroke54 54 mm
Cooling SystemAir cooled
Compression Ratio6.7:1
LubricationAutolube
Induction2x Mikuni VM28 SC carburetor
IgnitionBattery and coil with breaker points
StartingKick
Max Power30 hp / 22.3 kW @ 7500 rpm
Max Torque21 lb-ft / 2.9 kgf-m @ 7000 rpm
ClutchWet multi-plate
Transmission6 Speed
Final DriveChain
Gear Ratio1st 19.67 / 2nd 13.6 / 3rd 10.08 4th 7.59 / 5th 6.79 / 6th 6.01
Front SuspensionTelescopic forks
Rear SuspensionDual shocks
Front BrakesSingle disc
Rear BrakesDrum
Front Tyre3.00S-18-4PR
Rear Tyre3.50S-18-4PR
DimensionsLength 2030 mm / 79.9 in Width 830 mm / 32.6 in Height 1085 mm / 42.7 in
Wheelbase1325 mm / 52.1 in
Ground Clearance150 mm / 5.9 in
Dry Weight152 kg / 335 lbs
Fuel Capacity16.5 Liters / 4.2 US gal