Zongshen 168FB(E)

Zongshen 168FB(E) engineThe 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.

General information

Engine Specifications
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
Lubricating system Splash
Ignition system Transistorized ignition
Fuel system Carburetor
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 block
Compression ratio: 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)
Cylinder head
Valve arrangement: OHV, belt driven
Valves:: 2

Service Data

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.

Engine
Maximum speed: 3,900 rpm rpm
Idle speed: 1,800±200 rpm rpm
Valve clearance
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 system
Lubrication system: Splash
Oil type: 4-stroke engine oil
Recommended oil: SAE 10W-30
Oil capacity: 0.6 L (0.63 US. qt, 0.53 Imp. qt.)
Fuel system
Type: Carburetor
Ignition system
Type: Transistorized ignition
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)
ATTENTION! Dear visitors, this is an informational database of technical specifications, we are not a parts supplier or a marketplace.

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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