The Zongshen ZS 168FB(E) is a 0.2 L (196 cc, 11.96 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft, manufactured by Zongshen Power Co. for general-purpose applications.
The ZS 168FB(E) engine has a single-cylinder, overhead valve (OHV) design, and recoil starter (168FB) or electric starter (168FBE). This engine used a carburetor fuel system, transistorized magneto ignition system, splash type lubricating system, and forced-air cooling system. The ZS 168FB(E) is equipped with a 2.6 L (0.69 US. gal. 0.57 Imp. gal.) fuel tank.
This engine produced 5.2 PS (3.8 kW; 5.1 HP) at 3,600 rpm of horsepower and 10.7 N·m (1.1 kg·m, 7.9 ft·lb) of peak torque.
|Engine model||ZS 168FB(E)|
|Engine type||4-stroke, OHV, single-cylinder|
|Displacement||196 cm3, (11.96 cu·in)|
|Max. horsepower||5.2 PS (3.8 kW; 5.1 HP) at 3,600 rpm|
|Max. torque||10.7 N·m (1.1 kg·m, 7.9 ft·lb)|
|Cooling system||Forced air|
|Ignition system||Transistorized ignition|
|Fuel consumption||374 g/kWh|
|Fuel tank capacity||2.6 L (0.69 US. gal. 0.57 Imp. gal.)|
|Fuel used||Unleaded gasoline (octane number 86 or higher)|
|Starting system||Recoil or electric starter|
|PTO shaft rotation||Counterclockwise (from PTO shaft side)|
|Dimensions (L x W X H)||275 x 245 x 340 mm (10.8 x 9.6 x 13.4 in)|
|Dry weight||15.0 kg (33.1 lbs)|
Cylinder Block and Head
It has a 68.0 mm (2.68 in) cylinder bore and 54.0 mm (2.13 in) piston stroke. Compression ratio rating is 8.5:1.
|Cylinder bore:||68.0 mm (2.68 in)|
|Piston stroke:||54.0 mm (2.13 in)|
|Crankshaft center distance:||27 mm (1.065 in)|
|Valve arrangement:||OHV, belt driven|
The 4-stroke engine oil with a viscosity of SAE 10W-30 is recommended for the ZS 168FB(E), refilling oil capacity is 0.6 L (0.63 US. qt, 0.53 Imp. qt.). The valve clearance is 0.10-0.15 mm (0.0039-0.0059 in) for intake valves and 0.15-0.20 mm (0.0059-0.0079 in) for exhaust valves.
|Maximum speed:||3,900 rpm rpm|
|Idle speed:||1,800±200 rpm rpm|
|Intake valve clearance (COLD):||0.10-0.15 mm (0.0039-0.0059 in)|
|Exhaust valve clearance (COLD):||0.15-0.20 mm (0.0059-0.0079 in)|
|Oil type:||4-stroke engine oil|
|Recommended oil:||SAE 10W-30|
|Oil capacity:||0.6 L (0.63 US. qt, 0.53 Imp. qt.)|
|Ignition timing:||24°±2° B.T.D.C.|
|Spark plug gap:||0.6-0.8 mm (0.0236-0.0315 in)|
|Spark plug torque:||20 N·m (2 kg·m, 14.7 ft·lb)|
We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.
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