| Cylinders | 3 (1503-1603) - 4 (2004-2004/T-2204-2204/T) |
| Bore | 88 mm |
| Stroke | 85 mm (1503-2004-2004/T) - 90,4 mm (1603-2204-2204/T) |
| Displacement | 1551 cm3 (1503) - 2068 cm3 (2004-2004/T) - 1649 cm3 (1603) - 2199 cm3 (2204-2204/T) |
| Max inclination during operation | 30°, max 30 min / 35°, max 1 min |
| Oil capacity (MAX level.) including oil filter | Carter STD 4,4 lt. (1503-1603) - 6,4 lt. (2004-2004/T-2204-2204/T) |
| Dry weight | 155 kg (1503) - 158 kg (1603) - 190 kg (2004) - 192 kg (2204) -195 kg (2004/T) - 197 kg (2204/T) |