The Rato 125DCC (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), double clutches, electric and kick starter; 4-speed gearshift with sophisticated protection. The engine used auxiliary gear design for a primary clutch to reduce the transmission gap between driving and driven gears and transmission noise. It has a specific style for left cover with a unique appearance and various style of the right cover.
Bore and stroke are 52.4 mm (2.06 in) and 57 mm (2.24 in), respectively. The 125DCC (RW152FMI-2) produced 8.3 PS (6.1 kW; 8.2 HP) at 7,500 rpm of maximum horsepower and 9.0 Nm (0.92 kg·m; 6.64 ft·lb) at 5,500 rpm of torque .
General information
| Engine Specifications | |
| Model | 125DCC (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 Nm (0.92 kg·m; 6.64 ft·lb) at 5,500 rpm |
| Clutch method | Double clutches |
| Gearshift method | 4-speed gearshift（with sophisticated protection） |
| Cooling system | Forced-air |
| Ignition system | Capacitance discharge ignition (CDI) |
| Lubricating system | Splash |
| Starting system | Electric and kick |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel consumption | 367 g/kw·h |
Dimensions and Weight
| Rato 125DCC (RW152FMI-2) | |
| Length, mm (in) | 470 (18.5) |
| Width, mm (in) | 310 (12.2) |
| Height, mm (in) | 230 (9.1) |
| Dry weight, kg (lb) | 25 (55.1) |
Service Information
| Oil system | |
| Oil capacity | 1.0 L |
| Ignition system | |
| Spark plug | A7RTC |
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