| MODEL | JAWA 350 TYPE 634.5 1981 |
| Year | 1981 |
| Engine Type | Two stroke, twin cylinder |
| Displacement / Capacity | 343 cc / 20.93 cu in |
| Bore X Stroke | 58 x 65 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Max Power | 17.5 kW / 24 hp @ 5250 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Carburetor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Hydraulic telescopic forks |
| Rear Suspension | Twin shock |
| Front Brakes | Expanding drum |
| Rear Brakes | Expanding drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 175 kg / 386 lb |
| WHEEL SPECS | |
| Front Tyre | 3.25-18 |
| Rear Tyre | 3.50-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A 1981 example of the long-running Jawa 350/634 two-stroke twin, in a version with electric start. It uses drum brakes at both ends and a plain twin-shock chassis. A heavier, simpler design than the later disc-braked 638 series.
