Rato 90CC (RW147FMF)

Rato 90CC (RW152FMI-2)The Rato 90CC (RW147FMF) is a 85.9 cc (5.24 cu-in) single-cylinder air-cooled 4-stroke internal combustion horizontal motorcycle engine manufactured by Chongqing RATO Holding (Group) CO., LTD.

The Rato 90CC engine uses CDI (capacitance discharge ignition system), the centrifugal automatic clutch to smoothen the gearshift and improve the driving comfortableness, kick starter and 4-speed gearbox.

The engine cylinder bore is 47 mm (1.85 in) and piston stroke is 49.5 mm (1.95 in). The 90CC (RW147FMF) produced 5.4 PS (4.0 kW; 5.4 HP) at 7,500 rpm of maximum horsepower and 5.6 Nm (0.6 kg·m; 4.1 ft·lb) at 5,500 rpm of torque .

General information

Engine Specifications
Model90CC (RW147FMF)
TypeVertical, four-stroke, single cylinder
Displacement85.9 cc (5.24 cu-in)
Max. horsepower5.4 PS (4.0 KW; 5.4 HP) at 7,500 rpm
Max. torque (crank PTO)5.6 Nm (0.6 kg·m; 4.1 ft·lb) at 5,500 rpm
Clutch methodAutomatic wet multi-plate
Gearshift method4-speed gearshift
Cooling systemForced-air
Ignition systemCapacitance discharge ignition (CDI)
Lubricating systemSplash
Starting systemKick
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel consumption367 g/kw·h

Dimensions and Weight

90CC (RW147FMF)
Length, mm (in)450 (17.7)
Width, mm (in)290 (11.4)
Height, mm (in)220 (8.7)
Dry weight, kg (lb)20 (44.1)

Service Information

Oil system
Oil capacity0.8 L
Ignition system
Spark plugA7RTC
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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