MASTER (motor)
The MASTER engine is an engine family from Piaggio .
The engines were presented in 1998 and have been installed since 1999. Master stands for Multi-valve Advanced Super Torque Engine Range.
variants
Technical data a
| 300 | 400 | 500 | 500 | |
| construction time | 1998-2004 | since 2005 | 1998-2004 | since 2005 |
| cooling | water-cooled | |||
| Mixture formation | Carburetor | injection | ||
| Displacement | 280 cc | 399 cc | 460 cc | 493 cc |
| Valves | 4 SOHC | |||
| Bore × stroke (mm) | 72.0 x 69.0 | 85.8 x 69.0 | 92.0 x 69.0 | 94.0 x 71.0 |
| Compression ratio | ||||
| Max. Power (PS) at 1 / min |
19.1 kW (26.0 hp) 8000 |
25.0 kW (34.0 hp) 7500 |
29.0 kW (39.5 hp) 7250 |
29.0 kW (39.5 hp) 7250 |
| Max. Torque at 1 / min |
25.7 Nm 7000 |
37.6 Nm 5500 |
40.0 Nm 5500 |
42.2 Nm 5500 |
| Spreading | 2.82 | 2.67 (1: 2.32-1: 0.87) | 2.62 | 2.67 (1: 2.32-1: 0.87) |
a The values are taken from the manuals and the Piaggio Engines website