The Zongshen 168FA(E) is a 0.2 L (163 cc, 9.95 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft from Zongshen BT-series, manufactured by Zongshen Power Co. for general-purpose applications.
The ZS 168FA(E) engine has a single-cylinder, overhead valve (OHV) design, and recoil starter (168FA) or electric starter (168FAE). This engine used a carburetor fuel system, transistorized magneto ignition system, splash type lubricating system, and forced-air cooling system. The ZS 168FA(E) is equipped with a 2.6 L (0.69 US. gal. 0.57 Imp. gal.) fuel tank.
The Zongshen 168FA(E) engine produced 4.8 PS (3.5 kW; 4.7 HP) at 3,600 rpm of maximum output power and 8.8 N·m (0.9 kg·m, 6.5 ft·lb) of peak torque.
|Engine model||ZS 168FA(E)|
|Engine type||4-stroke, OHV, single-cylinder|
|Displacement||163 cm3, (9.95 cu·in)|
|Max. horsepower||4.8 PS (3.5 kW; 4.7 HP) at 3,600 rpm|
|Max. torque||8.8 N·m (0.9 kg·m, 6.5 ft·lb)|
|Cooling system||Forced air|
|Lubricating system||Splash type|
|Ignition system||Transistorized ignition|
|Fuel consumption||395 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)||272 x 246 x 337 mm (10.7 x 9.7 x 13.3 in)|
|Dry weight||15.0 kg (33.1 lbs)|
Cylinder Block and Head
A 68.0 mm (2.68 in) cylinder bore and 45.0 mm (1.77 in) piston stroke give the ZS 168FA(E) engine a total of 163 cc of displacement. Compression ratio rating is 8.5:1.
|Cylinder bore:||68.0 mm (2.68 in)|
|Piston stroke:||45.0 mm (1.77 in)|
|Crankshaft center distance:||22.5 mm (0.885 in)|
The 4-stroke engine oil with a viscosity of SAE 10W-30 is recommended for the ZS 168FA(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|
|Idle speed:||1,800±200 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:||23°±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)|