DT 250 MX

1980 Yamaha DT 250 MX Technical Analysis & Specification Breakdown

Positioned in Yamaha's enduro - offroad motorcycle lineup, the 1980 Yamaha DT 250 MX features a 246 cc (15 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 16 HP (11.7 kW) at 5,400 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 65 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the DT 250 MX measures 135 kg (298 lbs) wet (curb), translating to a power-to-weight ratio of 0.12 HP/kg (8.44 kg per horsepower). The 9-liter (2.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 109 km/h (68 mph).

Within MotoLibrary's Yamaha archive, this model family spans 5 indexed model years from 1978 to 1982, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.