1974 Jawa 250 Technical Analysis & Specification Breakdown
Built around Jawa's touring motorcycle platform, the 1974 Jawa 250 utilizes a 246 cc (15 cu in) air-cooled twin, two-stroke layout. In factory specification, peak output is rated at 17 HP (12.4 kW) at 5,250 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 69.1 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 250 measures 151 kg (333 lbs) wet (curb), translating to a power-to-weight ratio of 0.11 HP/kg (8.88 kg per horsepower). The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 125 km/h (78 mph).
Within MotoLibrary's Jawa archive, this model family spans 3 indexed model years from 1972 to 1975, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
69.1 HP/L
Power-to-Weight
0.11 HP/kg (8.88 kg/HP)
Engine
Displacement246.0 ccm (15.01 cubic inches)
Engine TypeTwin, two-stroke
Engine DetailsTwin, two-stroke
Power17.0 HP (12.4 kW)) @ 5250 RPM
Compression9.3:1
Bore x Stroke52.0 x 58.0 mm (2.0 x 2.3 inches)
Valves/Cylinder0
Fuel ControlPort control
LubricationSeparate lubrication with automatic oil pump
CoolingAir
Transmission
Gearbox4-speed
Final DriveChain (final drive)
ClutchMultiplate wet clutch in oil bath
DrivelineChain final drive
Chain Size520
Performance
Top Speed125.0 km/h (77.7 mph)
Wheels & Brakes
Front Tyre3.00-18
Rear Tyre3.25-18
Front BrakesExpanding brake
Rear BrakesExpanding brake
Dimensions & Weight
Weight incl.151.0 kg (332.9 pounds)
Fuel Capacity15.00 litres (3.96 US gallons)
Oil Capacity1.30 litres 2T reservoir / 0.80 L gearbox
Service & Fluids
Engine Oil2-stroke synthetic motorcycle oil (API TC / JASO FC/FD)
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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
