Project Description
| Model | JF390 |
| Engine Type | 4 Stroke, 25o Inclined, Single Cylinder with Air Cooled |
| Bore×Stroke （㎜×㎜） | 82×64/3.23×2.52 |
| Displacement (ml) | 389 |
| Compression Ratio（KVA） | 8.0:1 |
| Max Output (HP/rpm) | 13.0/3600 |
| Max. Torque (N.m/rpm) | 19/2500 |
| Ignition System | Non-contact Transistorized Ignition (T.C.I) |
| Start Mode | Recoil and Hand-Operated / Electric Start |
| Air Cleaner | Semi Dry, Oil Bath, Dual, Double Silent and Cyclone Type |
| Fuel Tank Capacity (L/gal) | 6.5/1.7 |
| Fuel Consumption (g/HP-hour) | 290 |
| Engine Oil Capacity (L/gal) | 1.1/0.29 |
| Net Weight (kg/lbs) | 32/70.4 |
| Gross Weight (kg/lbs) | 34/74.8 |
