Zongshen GB200S

Zongshen GB200SThe Zongshen GB200S is a 196 cc, (11.96 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft from GB-series, manufactured by Zongshen Power Co. for general-purpose applications.

The GB200S engine has a single-cylinder, overhead valve (OHV) design, and recoil or electric starter. This general-purpose engine used a carburetor fuel system, transistorized magneto ignition system, splash type lubricating system, and forced-air cooling system. The ZS GB200S is equipped with a 4.2 L (1.11 US. gal. 0.92 Imp. gal.) fuel tank.

This engine produced 5.7 PS (4.2 kW; 5.6 HP) at 3,600 rpm of horsepower and 11.5 N·m (1.2 kg·m, 8.5 ft·lb) of peak torque.

General information

Engine Specifications
Engine model GB200A
Engine type 4-stroke, OHV, single-cylinder
Displacement 196 cm3, (11.96 cu·in)
Max. horsepower 5.7 PS (4.2 kW; 5.6 HP) at 3,600 rpm
Max. torque 11.5 N·m (1.2 kg·m, 8.5 ft·lb)
Cooling system Forced air
Lubricating system Splash
Ignition system Transistorized ignition
Fuel system Carburetor
Fuel consumption 395 g/kWh
Fuel tank capacity 4.2 L (1.11 US. gal. 0.92 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) 365 x 320 x 345 mm (14.4 x 12.6 x 13.6 in)
Dry weight 15.5 kg (34.2 lbs)

Cylinder Block and Head

Cylinder bore and piston stroke are 68.0 mm (2.68 in) and 54.0 mm (2.13 in), respectively.

Cylinder block
Compression ratio:
Cylinder bore: 68.0 mm (2.68 in)
Piston stroke: 54.0 mm (2.13 in)
Number of piston rings (compression / oil): 2/1
Number of main bearings: 2
Crankshaft center distance: 27.0 mm (1.065 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 ZS GB200, refilling oil capacity is 0.6 L (0.63 US. qt, 0.53 Imp. qt.).

Engine
Maximum speed: 3,900 rpm
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: 25°±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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