Zongshen GB270

Zongshen GB270The Zongshen GB270 is a 272 cc, (16.60 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 GB270 engine has an overhead valve (OHV) design, carburetor fuel system, transistorized ignition system, and recoil or electric starter. A 75.0 mm (2.95 in) cylinder bore and 61.5 mm (2.42 in) piston stroke give the motor a total of 272 cc of displacement.

The Zongshen ZS GB270 produced 8.0 PS (5.8 kW; 7.8 HP) at 3,600 rpm of maximum output power and 15.5 Nm (1.58 kg·m; 11.44 ft·lb) of maximum torque.

General information

Engine Specifications
ModelGB270
Type4-stroke, OHV, single cylinder
Displacement272 cm2, (16.60 cu·in)
Max. horsepower8.0 PS (5.8 kW; 7.8 HP) at 3,600 rpm
Max. torque15.5 Nm (1.58 kg·m; 11.44 ft·lb)
Fuel systemCarburetor
Cooling systemForced-air
Ignition systemTransistorized
Lubricating systemSplash system
Starting systemRecoil or electric starter
Fuel tank capacity3.6 L (0.95 US. gal. 0.79 Imp. gal.)
Fuel consumption375 g/kWh
PTO shaft rotationCounterclockwise (from PTO shaft side)

Dimensions and Weight

Zongshen ZS GB270
Length, mm (in)
Width, mm (in)
Height, mm (in)
Dry weight, kg (lb)17.2 (37.9 )

Maintenance data

Engine
Maximum speed:3,600 rpm
Idle speed:1,440±140 rpm
Oil system
Oil type4-stroke engines oil
Recommended oil10W-30
Oil capacity0.6 l (0.6 US gal. 0.5 Imp. gal.)
Ignition system
Spark plug gap0.6-0.8 mm (0.024-0.031 in)
Spark plug torque20 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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