The Zongshen NH80 is a 72 cc, (4.82 cu·in) single-cylinder air-cooled 4-stroke internal combustion small gasoline engine, from NH-series manufactured by Zongshen Power Co.
It has a 51.0 mm (2.01 in) cylinder bore and 38.8 mm (1.53 in) piston stroke. Compression ratio rating is 7.6:1.
The Zongshen NH80 produced 2.0 PS (1.4 kW; 1.9 HP) at 3,600 rpm of maximum output power and 3.7 Nm (0.38 kg·m; 2.73 ft·lb) of maximum torque.
|Type||4-stroke, OHV, single cylinder|
|Displacement||72 cm2, (4.82 cu·in)|
|Max. horsepower||2.0 PS (1.4 kW; 1.9 HP) at 3,600 rpm|
|Max. torque||3.7 Nm (0.38 kg·m; 2.73 ft·lb)|
|Lubricating system||Splash system|
|Starting system||Recoil starter|
|Fuel tank capacity||–|
|Fuel consumption||395 g/kWh|
|PTO shaft rotation||Counterclockwise (from PTO shaft side)|
Dimensions and Weight
|Length, mm (in)||333 (13.1)|
|Width, mm (in)||241 (9.5)|
|Height, mm (in)||322 (12.7)|
|Dry weight, kg (lb)||9.3 kg (20.5 lbs)|
|Maximum speed:||4,000 rpm|
|Idle speed:||1,800±200 rpm|
|Intake valve||0.10-0.15 mm (0.004-0.006 in)|
|Exhaust valve||0.15-0.20 mm (0.006-0.008 in)|
|Oil type||4-stroke engines oil|
|Oil capacity||0.5 L (0.53 US. qt, 0.44 Imp. qt.)|
|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|
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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