MT-03

2009 Yamaha MT-03 Technical Analysis & Specification Breakdown

Built around Yamaha's sport motorcycle platform, the 2009 Yamaha MT-03 relies on a 660 cc (40.3 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 47.3 HP (34.5 kW) at 6,250 rpm while maximum torque reaches 56.2 Nm (41.5 lb-ft) at 5,730 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 71.7 HP per liter and a 520 rpm working window between peak torque (5,730 rpm) and peak power (6,250 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the MT-03 measures 192.4 kg (424 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (4.07 kg per horsepower). Rider ergonomics and chassis geometry center around a 805 mm (31.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 17 indexed model years from 2004 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.