The Rato 125CC (RW152FMI-2) is a 122.9 cc (7.5 cu-in) single-cylinder air-cooled 4-stroke internal combustion horizontal motorcycle engine manufactured by Chongqing RATO Holding (Group) CO., LTD.
The Rato 125CC engine is equipped with CDI (capacitance discharge ignition system), the manual wet multi-plate clutch, electric or kick starter and 4-international gearbox. The engine uses a specific style for left cover with unique appearance; various style of the right cover.
The engine cylinder bore is 52.4 mm (2.06 in) and the piston stroke is 57.0 mm (2.24 in). The 125CC (RW152FMI-2) produced 8.3 PS (6.1 kW; 8.2 HP) at 7,500 rpm of maximum horsepower and 9.0 N·m (0.92 kg·m, 6.64 ft·lb) at 5,500 rpm of torque .
General information
| Engine Specifications | |
| Model | 125CC (RW152FMI-2) |
| Type | Vertical, four-stroke, single cylinder |
| Displacement | 122.9 cc (7.5 cu-in) |
| Max. horsepower | 8.3 PS (6.1 kW; 8.2 HP) at 7,500 rpm |
| Max. torque (crank PTO) | 9.0 N·m (0.92 kg·m, 6.64 ft·lb) at 5,500 rpm |
| Clutch method | Manual wet multi-plate |
| Gearshift method | 4-International |
| Cooling system | Forced-air |
| Ignition system | Capacitance discharge ignition (CDI) |
| Lubricating system | Splash |
| Starting system | Electric or kick |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel consumption | 367 g/kw·h |
Service Information
| Oil system | |
| Oil capacity | 1.0 L |
| Ignition system | |
| Spark plug | A7RTC |
Where can i get a big bore kit for the 152fmi engine please
look for yx140
what are the dimensions of this 125cc engine?