XJ 900 S Diversion

1999 Yamaha XJ 900 S Diversion Technical Analysis & Specification Breakdown

Positioned in Yamaha's touring motorcycle lineup, the 1999 Yamaha XJ 900 S Diversion relies on a 892 cc (54.4 cu in) air-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 89 HP (65 kW) at 8,250 rpm while maximum torque reaches 83 Nm (61.2 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 99.8 HP per liter and a 750 rpm working window between peak torque (7,500 rpm) and peak power (8,250 rpm), 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 900 S Diversion measures 280 kg (617 lbs) wet (curb), translating to a power-to-weight ratio of 0.32 HP/kg (3.15 kg per horsepower). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,505 mm (59.3 in) wheelbase engineered for balanced agility and highway composure. The 24-liter (6.3 US gal) fuel tank paired with a rated consumption of 6.4 L/100 km provides an estimated theoretical range of roughly 375 km (233 miles) between fill-ups, while factory top speed is listed at 202 km/h (126 mph).

Within MotoLibrary's Yamaha archive, this model family spans 8 indexed model years from 1996 to 2003, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.