Zongshen GB225

Zongshen GB225The Zongshen GB225 is a 225 cc, (13.61 cu·in) single-cylinder air-cooled 4-stroke internal combustion small gasoline engine, from GB-series manufactured by Zongshen Power Co. for general-purpose applications.

The Zongshen GB225 engine has an overhead valve (OHV) design, carburetor fuel system, transistorized ignition system, and a recoil starter. A 72.0 mm (2.83 in) cylinder bore and 55.0 mm (2.17 in) piston stroke give the motor a total of 223 cc of displacement.

The Zongshen ZS GB225 produced 6.0 PS (4.4 kW; 5.9 HP) at 3,600 rpm of maximum output power and 12.9 Nm (1.3 kg·m; 9.5 ft·lb) of maximum torque.

General information

Engine Specifications
Model GB225
Type 4-stroke, OHV, single cylinder
Displacement 223 cm2, (12.61 cu·in)
Max. horsepower 6.0 PS (4.4 kW; 5.9 HP) at 3,600 rpm
Max. torque 12.9 Nm (1.3 kg·m; 9.5 ft·lb)
Fuel system Carburetor
Cooling system Forced-air
Ignition system Transistorized
Lubricating system Splash system
Starting system Recoil starter
Fuel tank capacity 2.6 L (0.69 US. gal. 0.57 Imp. gal.)
Fuel consumption 375 g/kWh
PTO shaft rotation Counterclockwise (from PTO shaft side)

Dimensions and Weight

Zongshen ZS GB225
Length, mm (in)
Width, mm (in)
Height, mm (in)
Dry weight, kg (lb) 16.5 kg (36.4 lbs)

Maintenance data

Maximum speed: 3,600 rpm
Idle speed: 1,440±140 rpm
Oil system
Oil type 4-stroke engines oil
Recommended oil 10W-30
Oil capacity 0.6 l (0.6 US gal. 0.5 Imp. gal.)
Ignition system
Spark plug gap 0.6-0.8 mm (0.024-0.031 in)
Spark plug torque 20 N·m; 2.0 kg·m; 14.7 ft·lb
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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