RD 350 F (reduced effect)

1990 Yamaha RD 350 F (reduced effect) Technical Analysis & Specification Breakdown

Positioned in Yamaha's sport motorcycle lineup, the 1990 Yamaha RD 350 F (reduced effect) relies on a 347 cc (21.2 cu in) liquid-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 27 HP (19.7 kW) at 6,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 77.8 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 350 F (reduced effect) measures 162 kg (357 lbs) wet (curb), translating to a power-to-weight ratio of 0.17 HP/kg (6 kg per horsepower). The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 142 km/h (88 mph).

Within MotoLibrary's Yamaha archive, this model family spans 6 indexed model years from 1985 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.