Zongshen NH150

NH150The Zongshen NH150 is a 149 cc, (9.09 cu·in) single-cylinder air-cooled 4-stroke internal combustion small gasoline engine, from NH-series manufactured by Zongshen Power Co.

It has a 65.0 mm (2.56 in) cylinder bore and 45.0 mm (1.77 in) piston stroke. Compression ratio rating is 8.3:1.

The Zongshen NH150 produced 3.4 PS (2.5 kW; 3.4 HP) at 3,600 rpm of maximum output power and 7.2 Nm (0.73 kg·m; 5.31 ft·lb) at 3,600 rpm of maximum torque.

General information

Engine Specifications
ModelNH150
Type4-stroke, OHV, single cylinder
Displacement149 cm2, (9.09 cu·in)
Max. horsepower3.4 PS (2.5 kW; 3.4 HP) at 3,600 rpm
Max. torque7.2 Nm (0.73 kg·m; 5.31 ft·lb)
Fuel systemCarburetor
Cooling systemForced-air
Ignition system
Lubricating systemSplash system
Starting systemRecoil starter
Fuel tank capacity0.9 L (0.24 US. gal. 0.2 Imp. gal.)
Fuel consumption400 g/kWh
PTO shaft rotationCounterclockwise (from PTO shaft side)

Dimensions and Weight

Zongshen NH150
Length, mm (in)333 (13.1)
Width, mm (in)241 (9.5)
Height, mm (in)322 (12.7)
Dry weight, kg (lb)10.0 kg (22 lbs)

Maintenance data

Engine
Maximum speed:4,000 rpm
Idle speed:1,800±200 rpm
Valve clearance
Intake valve0.10-0.15 mm (0.004-0.006 in)
Exhaust valve0.15-0.20 mm (0.006-0.008 in)
Oil system
Oil type4-stroke engines oil
Recommended oil10W-30
Oil capacity0.5 L (0.53 US. qt, 0.44 Imp. qt.)
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
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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.

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