RD 200 DX

1977 Yamaha RD 200 DX Technical Analysis & Specification Breakdown

Positioned in Yamaha's classic motorcycle lineup, the 1977 Yamaha RD 200 DX relies on a 195 cc (11.9 cu in) air-cooled twin, two-stroke powerplant. In factory specification, peak output is rated at 17 HP (12.4 kW) at 7,700 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 87.2 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 RD 200 DX measures 132 kg (291 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.76 kg per horsepower). The 11.5-liter (3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 122 km/h (76 mph).

Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 1976 to 1977, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.