350 Type 638.5

1986 Jawa 350 Type 638.5 Technical Analysis & Specification Breakdown

At the heart of the 1986 Jawa 350 Type 638.5 allround motorcycle, Jawa relies on a 343 cc (20.9 cu in) air-cooled twin, two-stroke powerplant. In factory specification, peak output is rated at 26 HP (19 kW) at 5,500 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 75.8 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 350 Type 638.5 measures 156 kg (344 lbs) wet (curb), translating to a power-to-weight ratio of 0.17 HP/kg (6 kg per horsepower). The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 133 km/h (83 mph).

Within MotoLibrary's Jawa archive, this model family spans 3 indexed model years from 1984 to 1986, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.