XJ 600

1991 Yamaha XJ 600 Technical Analysis & Specification Breakdown

Engineered by Yamaha for the sport touring motorcycle segment, the 1991 Yamaha XJ 600 pairs a 599 cc (36.6 cu in) air-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 72 HP (52.6 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 120.2 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 XJ 600 measures 212 kg (467 lbs) wet (curb), translating to a power-to-weight ratio of 0.34 HP/kg (2.94 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 198 km/h (123 mph).

Within MotoLibrary's Yamaha archive, this model family spans 8 indexed model years from 1984 to 1991, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.