640 Classic

1994 Jawa 640 Classic Technical Analysis & Specification Breakdown

At the heart of the 1994 Jawa 640 Classic motorcycle, Jawa pairs a 350 cc (21.4 cu in) twin, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 23.5 HP (17.2 kW) at 5,250 rpm while maximum torque reaches 31.4 Nm (23.1 lb-ft) at 4,750 rpm, transferring power to the rear wheel through a 4-speed gearbox. With a specific output of 67.1 HP per liter and a 500 rpm working window between peak torque (4,750 rpm) and peak power (5,250 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 640 Classic measures 150 kg (331 lbs) dry, translating to a power-to-weight ratio of 0.16 HP/kg (6.38 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Jawa archive, this model family spans 4 indexed model years from 1994 to 2001, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.