TDR 250

1988 Yamaha TDR 250 Technical Analysis & Specification Breakdown

Positioned in Yamaha's enduro - offroad motorcycle lineup, the 1988 Yamaha TDR 250 pairs a 250 cc (15.3 cu in) liquid-cooled twin, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 50 HP (36.5 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 200 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the TDR 250 measures 153 kg (337 lbs) wet (curb), translating to a power-to-weight ratio of 0.33 HP/kg (3.06 kg per horsepower). The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 161 km/h (100 mph).

Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 1988 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.