RD 350 F (reduced effect)

1986 Yamaha RD 350 F (reduced effect) Technical Analysis & Specification Breakdown

Engineered by Yamaha for the sport motorcycle segment, the 1986 Yamaha RD 350 F (reduced effect) relies on a 347 cc (21.2 cu in) liquid-cooled twin, two-stroke powerplant. In factory specification, peak output is rated at 50 HP (36.5 kW) at 9,200 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 144.1 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the RD 350 F (reduced effect) measures 170 kg (375 lbs) wet (curb), translating to a power-to-weight ratio of 0.29 HP/kg (3.4 kg per horsepower). The 20-liter (5.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 184 km/h (114 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.