RD 350 N

1989 Yamaha RD 350 N Technical Analysis & Specification Breakdown

Positioned in Yamaha's classic motorcycle lineup, the 1989 Yamaha RD 350 N relies on a 347 cc (21.2 cu in) liquid-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 50 HP (36.5 kW) at 9,000 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 N measures 162 kg (357 lbs) wet (curb), translating to a power-to-weight ratio of 0.31 HP/kg (3.24 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 187 km/h (116 mph).

Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 1989 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.