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MotoLibrary Score
45/100Balanced
Top Speed
130 km/h
Torque
32 Nm
Engine
344 ccm
Technical Overview
1991 Jawa 350-639 Technical Analysis & Specification Breakdown
Built around Jawa's naked motorcycle platform, the 1991 Jawa 350-639 features a 344 cc (21 cu in) air-cooled twin, two-stroke configuration. In factory specification, maximum torque reaches 32 Nm (23.6 lb-ft) at 4,750 rpm, transferring power to the rear wheel through chain final drive. Internal engine geometry specifies a bore and stroke of 58.0 x 65.0 mm (2.3 x 2.6 inches).
The 17-liter (4.5 US gal) fuel tank paired with a rated consumption of 4 L/100 km provides an estimated theoretical range of roughly 425 km (264 miles) between fill-ups, while factory top speed is listed at 130 km/h (81 mph).
Theoretical Range
~425 km (264 mi)
Engine
Displacement344.0 ccm (20.99 cubic inches)
Engine TypeTwin, two-stroke
Engine DetailsTwin, two-stroke
Torque32.0 Nm (3.3 kgf-m or 23.6 ft.lbs) @ 4750 RPM
Bore x Stroke58.0 x 65.0 mm (2.3 x 2.6 inches)
Fuel SystemCarburettor
Lubricationmix
CoolingAir
Transmission
Final DriveChain (final drive)
Performance
Top Speed130.0 km/h (80.8 mph)
Fuel Consumption4.00 litres/100 km (25.0 km/l or 58.81 mpg)
Greenhouse Gases92.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
