The Zongshen GB160 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 GB-series, manufactured by Zongshen Power Co. for general-purpose applications.
The ZS GB160 engine has a single-cylinder, overhead valve (OHV) design, and recoil starter. This engine used a carburetor fuel system, transistorized magneto ignition system, splash type lubricating system, and forced-air cooling system. The ZS GB160 is equipped with a 2.6 L (0.69 US. gal. 0.57 Imp. gal.) fuel tank.
The Zongshen GB160 engine produced 4.4 PS (3.2 kW; 4.3 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.
General information
Engine Specifications | |
Engine model | GB160 |
Engine type | 4-stroke, OHV, single-cylinder |
Displacement | 163 cm3, (9.95 cu·in) |
Max. horsepower | 4.4 PS (3.2 kW; 4.3 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 |
Ignition system | Transistorized ignition |
Fuel system | Carburetor |
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 starter |
PTO shaft rotation | Counterclockwise (from PTO shaft side) |
Dimensions (L x W X H) | – |
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 GB160 engine a total of 163 cc of displacement.
Cylinder block | |
Compression ratio: | – |
Cylinder bore: | 68.0 mm (2.68 in) |
Piston stroke: | 45.0 mm (1.77 in) |
Number of piston rings (compression / oil): | 2/1 |
Number of main bearings: | 2 |
Crankshaft center distance: | 22.5 mm (0.885 in) |
Cylinder head | |
Valve arrangement: | OHV |
Valves:: | 2 |
Service Data
The 4-stroke engine oil with a viscosity of SAE 10W-30 is recommended for the GB160, refilling oil capacity is 0.6 L (0.63 US. qt, 0.53 Imp. qt.). The valve clearance is 0.10-0.15 mm (0.004-0.006 in) for intake valves and 0.15-0.20 mm (0.006-0.008 in) for exhaust valves.
Engine | |
Maximum speed: | 3,900 rpm |
Idle speed: | 1,800±200 rpm |
Valve clearance | |
Intake valve clearance (COLD): | 0.10-0.15 mm (0.004-0.006 in) |
Exhaust valve clearance (COLD): | 0.15-0.20 mm (0.006-0.008 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: | 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) |
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