RD 350
1981 Yamaha RD 350 Technical Analysis & Specification Breakdown
Built around Yamaha's sport motorcycle platform, the 1981 Yamaha RD 350 features a 347 cc (21.2 cu in) liquid-cooled twin, two-stroke configuration. In factory specification, peak output is rated at 49 HP (35.8 kW) at 8,700 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 141.2 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 measures 161 kg (355 lbs) wet (curb), translating to a power-to-weight ratio of 0.3 HP/kg (3.29 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 178 km/h (111 mph).
Within MotoLibrary's Yamaha archive, this model family spans 7 indexed model years from 1975 to 1988, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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