Rato 120CC (RW152FMI)

Rato 120CC (RW152FMI)The Rato 120CC (RW152FMI) is a 119.7 cc (7.3 cu-in) single-cylinder air-cooled 4-stroke internal combustion horizontal motorcycle engine manufactured by Chongqing RATO Holding (Group) CO., LTD.

The Rato 120CC engine is equipped with CDI (capacitance discharge ignition system), the automatic wet multi-plate clutch, electric and kick starter or electric starter only and 3-speed gearbox with reverse gear. The Rato company installed the reverse gear mechanism into the engine gearbox to generate a more compact structure. Perfect integration between reverse gear mechanism and forward gear to realize the reverse gear easily and simplifier the operation and control.

It has a 52.4 mm (2.06 in) cylinder bore and 55.5 mm (2.19 in) piston stroke. The 120CC (RW152FMI) produced 7.5 PS (5.5 kW; 7.4 HP) at 7,500 rpm of maximum horsepower and 8.5 Nm (0.87 kg·m; 6.27 ft·lb) at 5,500 rpm of torque .

General information

Engine Specifications
Model120CC (RW152FMI)
TypeVertical, four-stroke, single cylinder
Displacement119.7 cc (7.3 cu-in)
Max. horsepower7.5 PS (5.5 KW; 7.4 HP) at 7,500 rpm
Max. torque (crank PTO)8.5 Nm (0.87 kg·m; 6.27 ft·lb) at 5,500 rpm
Clutch methodAutomatic wet multi-plate
Gearshift method3-2-1-0-reverse
Cooling systemForced-air
Ignition systemCapacitance discharge ignition (CDI)
Lubricating systemSplash
Starting systemElectric and kick or electric only
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel consumption367 g/kw·h

Dimensions and Weight

Rato 120CC (RW152FMI)
Length, mm (in)470 (18.5)
Width, mm (in)310 (12.2)
Height, mm (in)260 (10.2)
Dry weight, kg (lb)25 (55.1)

Service Information

Oil system
Oil capacity1.0 L
Ignition system
Spark plugA7RTC
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