The Zongshen NH150H 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 for rammers.
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 NH150H 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.
|Type||4-stroke, OHV, single cylinder|
|Displacement||149 cm2, (9.09 cu·in)|
|Max. horsepower||3.4 PS (2.5 kW; 3.4 HP) at 3,600 rpm|
|Max. torque||7.2 Nm (0.73 kg·m; 5.31 ft·lb)|
|Lubricating system||Splash system|
|Starting system||Recoil starter|
|Fuel tank capacity||–|
|Fuel consumption||400 g/kWh|
|PTO shaft rotation||Counterclockwise (from PTO shaft side)|
Dimensions and Weight
|Length, mm (in)||318 (12.5)|
|Width, mm (in)||251 (9.9)|
|Height, mm (in)||346 (13.6)|
|Dry weight, kg (lb)||10.8 kg (23.8 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|
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