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 |
We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.
Where can i get a big bore kit for the 152fmi engine please
look for yx140
what are the dimensions of this 125cc engine?