DT 125 E

1974 Yamaha DT 125 E Technical Analysis & Specification Breakdown

At the heart of the 1974 Yamaha DT 125 E enduro - offroad motorcycle, Yamaha features a 123 cc (7.5 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 13 HP (9.5 kW) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 105.7 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the DT 125 E measures 103 kg (227 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.92 kg per horsepower). The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 105 km/h (65 mph).

Within MotoLibrary's Yamaha archive, this model family spans 7 indexed model years from 1974 to 1980, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.