BWs

2006 Yamaha BWs Technical Analysis & Specification Breakdown

Engineered by Yamaha for the scooter motorcycle segment, the 2006 Yamaha BWs features a 49 cc (3 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 3.2 HP (2.3 kW) at 6,500 rpm while maximum torque reaches 3.6 Nm (2.7 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 40.0 x 39.2 mm (1.6 x 1.5 inches) with a 7.2:1 compression ratio.

On the scales, the BWs measures 75 kg (165 lbs) dry. Rider ergonomics and chassis geometry center around a 768 mm (30.2 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,172 mm (46.1 in) wheelbase engineered for quick, flickable steering geometry. The 5.3-liter (1.4 US gal) fuel tank paired with a rated consumption of 1.82 L/100 km provides an estimated theoretical range of roughly 291 km (181 miles) between fill-ups.

Within MotoLibrary's Yamaha archive, this model family spans 7 indexed model years from 2006 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.