FJ-09

2017 Yamaha FJ-09 Technical Analysis & Specification Breakdown

Engineered by Yamaha for the naked motorcycle segment, the 2017 Yamaha FJ-09 features a 847 cc (51.7 cu in) liquid-cooled in-line three, four-stroke configuration. In factory specification, peak output is rated at 115 HP (83.9 kW) at 10,120 rpm while maximum torque reaches 61.5 Nm (45.3 lb-ft) at 8,480 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 135.8 HP per liter and a 1,640 rpm working window between peak torque (8,480 rpm) and peak power (10,120 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 FJ-09 measures 209.6 kg (462 lbs) wet (curb), translating to a power-to-weight ratio of 0.55 HP/kg (1.82 kg per horsepower). Rider ergonomics and chassis geometry center around a 846 mm (33.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 18.17-liter (4.8 US gal) fuel tank paired with a rated consumption of 5.35 L/100 km provides an estimated theoretical range of roughly 340 km (211 miles) between fill-ups.

Within MotoLibrary's Yamaha archive, this model family spans 4 indexed model years from 2015 to 2018, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.