XZ 550

1982 Yamaha XZ 550 Technical Analysis & Specification Breakdown

Built around Yamaha's sport touring motorcycle platform, the 1982 Yamaha XZ 550 features a 553 cc (33.7 cu in) liquid-cooled v2, four-stroke configuration. In factory specification, peak output is rated at 64 HP (46.7 kW) at 9,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 115.7 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the XZ 550 measures 228 kg (503 lbs) wet (curb), translating to a power-to-weight ratio of 0.28 HP/kg (3.56 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 180 km/h (112 mph).

Within MotoLibrary's Yamaha archive, this model family spans 5 indexed model years from 1982 to 1986, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.