Rato ATW250 (RW171FMM)

Rato ATW250 (RW171FMM)The Rato ATW250 (RW171FMM) is a 229.6 cc (14.01 cu-in) single-cylinder air-cooled 4-stroke internal combustion vertical motorcycle engine, manufactured by Chongqing RATO Holding (Group) CO., LTD.

The Rato ATW250 is a new engine designed specifically for beach buggy with high safety factor. The engine uses transmission of inbuilt arc bevel gear free of maintenance, pollution with high efficiency and inbuilt balance system with little vibration and high-level comfortableness. The engine is equipped with capacitance discharge ignition system (CDI), electric or kick starter and 5-speed gearbox.

The engine cylinder bore is 71.0 mm (2.79 in) and piston stroke is 58.0 mm (2.28 in). The ATW250 (RW171FMM) produced 14.9 PS (11.0 kW; 14.7 HP) at 7,000 rpm of maximum horsepower and 15.5 N·m (1.58 kg·m, 11.4 ft·lb) at 6,000 rpm of torque.

General information

Engine Specifications
Model ATW250 (RW171FMM)
Type Vertical, four-stroke, single cylinder
Displacement 229.6 ml (14.01 cu-in)
Max. horsepower 14.9 PS (11.0 kW; 14.7 HP) at 7,000 rpm
Max. torque (crank PTO) 15.5 N·m (1.58 kg·m, 11.4 ft·lb) at 6,000 rpm
Clutch Double clutches
Gearshift method 5-speed gearshift
Cooling system Forced-air
Ignition system Capacitance discharge ignition (CDI)
Lubricating system Splash
Starting system Electric / kick
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel consumption 354 g/kw·h

Dimensions and Weight

Rato ATW250 (RW171FMM)
Length, mm (in) 480 (18.9)
Width, mm (in) 431 (17.0)
Height, mm (in) 435 (17.1)
Dry weight, kg (lb) 43.5 (95.9)

Service Information

Oil system
Oil capacity 2.2 L
Ignition system
Spark plug B7RTC
ATTENTION! Dear visitors, this site is not a trading platform, an official dealer or a spare parts supplier, so we do not have any price lists or spare parts catalogs. We are an information portal and provide the technical specifications of gasoline and diesel engines.

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.

Be the first to comment

Leave a Reply

Your email address will not be published.