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← Kawasaki
Classic · 2004

W 650

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MotoLibrary Score
45 /100 Balanced
Power/Weight
0.26 hp/kg
Torque
56 Nm
Engine
675 ccm

2004 Kawasaki W 650 Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the classic motorcycle segment, the 2004 Kawasaki W 650 pairs a 675 cc (41.2 cu in) air-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 50 HP (36.5 kW) at 7,000 rpm while maximum torque reaches 56 Nm (41.3 lb-ft), transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 74.1 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the W 650 measures 195 kg (430 lbs) dry, translating to a power-to-weight ratio of 0.26 HP/kg (3.9 kg per horsepower).

Within MotoLibrary's Kawasaki archive, this model family spans 7 indexed model years from 1999 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
74.1 HP/L
Power-to-Weight
0.26 HP/kg (3.9 kg/HP)
Engine
Displacement 675.0 ccm (41.19 cubic inches)
Engine Type Twin, four-stroke
Engine Details Twin, four-stroke
Power 50.0 HP (36.5 kW)) @ 7000 RPM
Torque 56.0 Nm (5.7 kgf-m or 41.3 ft.lbs)
Fuel Control Single Overhead Cams (SOHC)
Cooling Air
Transmission
Gearbox 5-speed
Dimensions & Weight
Dry Weight 195.0 kg (429.9 pounds)
Power/Weight 0.2564 HP/kg
Other
Color Options Blue
More from Kawasaki
Buying Checklist

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Power
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Weight
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Transmission
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Rider Profile

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Intermediate
Requires some riding experience.
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Handling
Medium weight — some experience needed
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