The Zongshen GB1000S is a 1.0 L (999 cc, 61.0 cu·in) natural aspirated V-twin cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft, manufactured by Zongshen Power Co for pressure washers, generators, air compressors.
The Zongshen GB1000S engine has a V-twin cylinder, overhead valve (OHV) design, and electric starter. This engine used a carburetor fuel system, transistorized magneto ignition system, splash type lubricating system, and forced-air cooling system.
This engine produced 32.6 PS (24.0 kW; 32.2 HP) at 3,900 rpm of horsepower and 71 N·m (7.2 kg·m, 52.3 ft·lb) of torque.
General information
| Engine Specifications | |
| Engine model | GB1000S |
| Engine type | 4-stroke, OHV, V-twi |
| Displacement | 999 cm3, (61.0 cu·in) |
| Max. horsepower | 32.6 PS (24.0 kW; 32.2 HP) at 3,900 rpm |
| Max. torque | 71 N·m (7.2 kg·m, 52.3 ft·lb) at rpm |
| Cooling system | Forced air |
| Lubricating system | Splash type |
| Ignition system | Transistorized ignition |
| Fuel system | Carburetor |
| Fuel consumption | 360 g/kWh |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Starting system | Electric starter |
| PTO shaft rotation | Counterclockwise (from PTO shaft side) |
| Dimensions (L x W X H) | 515 x 465 x 575 mm (20.3 x 18.3 x 22.6 in) |
| Dry weight | 54 kg (119 lbs) |
Cylinder Block and Head
It has a 90.0 mm (3.54 in) cylinder bore and 78.5 mm (3.09 in) piston stroke.
| Cylinder block | |
| Cylinder bore: | 90.0 mm (3.54 in) |
| Piston stroke: | 78.5 mm (3.09 in) |
| Number of piston rings (compression / oil): | 2/1 |
| Crankshaft center distance: | 39.25 mm (1.545 in) |
| Cylinder head | |
| Valve arrangement: | OHV |
Service Data
| Engine | |
| Maximum speed: | 3,900 rpm rpm |
| Idle speed: | 1,650±150 rpm rpm |
| Oil system | |
| Lubrication system: | Splash |
| Oil type: | 4-stroke engine oil |
| Recommended oil: | SAE 10W-30 |
| Oil capacity: | 2.5 L (2.64 US. qt, 2.2 Imp. qt.) |
| Fuel system | |
| Type: | Carburetor |
| Ignition system | |
| Type: | Transistorized ignition |
| 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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