| Cylinders | 1 |
| Bore | 90 mm (7 LD 710) - 95 mm (7 LD 720-723-725) |
| Stroke | 94 mm |
| Displacement | 598 cm3 (7 LD 710) - 666 cm3 (7 LD 720-723-725) |
| Max inclination during operation | 30°, max 30 min / 35°, max 1 min |
| Oil capacity (MAX level.) including oil filter | 2,2 lt. |
| Dry weight | 70 kg (7 LD 710-720-723) - 85 kg (7 LD 725) |