| Model |
139F-2 |
| Engine Type |
4-stroke, overhead cam single cylinder |
| Bore x Stroke |
39 x 30 mm (1.5 x 1.2 in) |
| Displacement |
35.8cm3 (2.2 cu in) |
| Compression Ratio |
8.0 : 1 |
| Net Horse Power Output |
1.0 kW (1.3 HP) at 7,000 |
| Net Torque |
1.6 Nm (1.2 lbs ft) at 5,500 rpm |
| Operating Angle |
Infinite |
| Ignition System |
Transistorized magneto ignition |
| Starting System |
Recoil Starter |
| Carburetor |
Diaphragm type |
| Lubrication System |
Oil mist |
| Cooling System |
Forced-air |
| Air Cleaner |
Semi-dry type |
| Oil Capacity |
100 cc (3.4 US oz, 3.5 Imp oz) |
| Fuel Tank Capacity (liter) |
0.65l (0.17 US gal, 0.14 Imp gal) |
| Dimensions (L x W x H) |
204mm(8.0 in) x 234mm (9.2 in) x 230mm (9.4 in) |
| Dry Weight |
3.46 kg (7.6 lbs) |
