The Rato CGS125 (RW157FMI) is a 124.9 ml (7.62 cu-in) single-cylinder air-cooled 4-stroke internal combustion vertical motorcycle engine from Rato CGS-series, manufactured by Chongqing RATO Holding (Group) CO., LTD.
The Rato CGS125 engine uses the light piston to reduce the reciprocating inertia of piston motion and improve the engine performance; capacitance discharge ignition system and electric or kick start. The engine is equipped with a 5-speed gearbox.
The engine cylinder bore is 56.5 mm (2.22 in) and piston stroke is 49.8 mm (1.96 in). The CGS125 (RW157FMI) produced 10.5 PS (7.7 kW; 10.3 HP) at 8,500 rpm of maximum horsepower and 9.0 N·m (0.92 kg·m, 6.64 ft·lb) of torque at 7,000 rpm.
|Type||Vertical, four-stroke, single cylinder|
|Displacement||124.9 ml (7.62 cu-in)|
|Max. horsepower||10.5 PS (7.7 kW; 10.3 HP) at 8,500 rpm|
|Max. torque (crank PTO)||9.0 N·m (0.92 kg·m, 6.64 ft·lb) at 7,000 rpm|
|Clutch method||Manual wet multi-plate|
|Ignition system||Capacitance discharge ignition (CDI)|
|Starting system||Electric / kick|
|Fuel used||Unleaded gasoline (octane number 86 or higher)|
|Fuel consumption||354 g/kw·h|
Dimensions and Weight
|Rato CGS125 (RW157FMI)|
|Length, mm (in)||355 (14.0)|
|Width, mm (in)||320 (12.6)|
|Height, mm (in)||420 (16.5)|
|Dry weight, kg (lb)||30 (66.1)|
|Oil capacity||1.0 L|
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.
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