The Kohler SV830 is a 725 cc (44.2 cu·in) natural aspirated V-twin four-stroke air-cooled internal combustion gasoline engine with a vertical shaft, from the Courage PRO series, manufactured by Kohler Co for heavy-duty commercial applications.
The cylinder bore is 83.0 mm (3.27 in) and the piston stroke is 67.0 mm (2.64 in). The compression ratio rating is 9.0:1.
The Kohler SV830 engine produced 25.3 PS (18.6 KW; 25.0 HP) at 3,600 rpm of maximum output power and 60.7 Nm (6.2 kg·m; 44.8 ft·lb) at 2,200 rpm of peak torque.
The Kohler Courage PRO SV830 features:
- OHV design
- Aluminum head and crankcase with cast-iron cylinder liner
- Heat-treated bearings
- Fixed Ignition System, Digital Spark Advance Ignition (DSAI), Digital Spark Advance Module (DSAM) ignition system
- Carburetor with fixed main jet (Keihin, Nikki or Walbro)
- Full-pressure lubrication lubrication system with oil filter and bypass valve
- Forced air cooling system
- Large-capacity professional air, oil and fuel filters
- Electric starter
General information
Engine Specifications | |
Engine model | Courage PRO SV830 |
Engine type | 4-stroke, OHV, V-twin |
Displacement | 725 cm3, (44.24 cu·in) |
Max. horsepower | 25.3 PS (18.6 KW; 25.0 HP) at 3,600 rpm |
Max. torque | 60.7 Nm (6.2 kg·m; 44.8 ft·lb) at 2,200 rpm |
Cooling system | Forced air |
Air cleaner | Replaceable, paper element |
Lubricating system | Pressurized lubrication |
Ignition system | Fixed Ignition System, Digital Spark Advance Ignition (DSAI), Digital Spark Advance Module (DSAM) |
Fuel system | Carburetor with fixed main jet (Keihin, Nikki or Walbro) |
Fuel consumption | – |
Fuel tank capacity | – |
Fuel used | Unleaded gasoline (octane number 86 or higher) |
Starting system | Electric starter |
Dimensions (L x W X H) | 470 x 452 x 358 mm (18.5 x 17.8 x 14.1 in) |
Dry weight | 41.3 kg (91.1 lbs) |
Cylinder Block and Head
Cylinder block | |
Compression ratio: | 9.0:1 |
Cylinder bore: | 83.0 mm (3.27 in) |
Piston stroke: | 67.0 mm (2.64 in) |
Cylinder internal diameter (standard): | 83.006-83.031 mm (3.2679-3.2689 in) |
Number of piston rings (compression / oil): | 2/1 |
Connecting rod small end diameter (standard): | 17.015-17.023 mm (0.6699-0.6702 in) |
Piston pin diameter: | 16.995-17.000 mm (0.6691-0.6693 in) |
Crankshaft main journal diameter: | 40.913-40.935 mm (1.6107-1.6116 in) |
Crankpin journal diameter: | 35.955-35.973 mm (1.4155-1.4163 in) |
Crankshaft center distance: | 33.5 mm (1.32 in) |
Cylinder head | |
Valve arrangement: | OHV |
Valves: | 2 (4 valves in total) |
Valve head diameter (INTAKE): | 33.370-33.630 mm (1.3138-1.324 in) |
Valve head diameter (EXHAUST): | 29.370-29.630 mm (1.1563-1.1665 in) |
Valve steam diameter (INTAKE): | 6.982-7.000 mm (0.2749-0.2756 in) |
Valve steam diameter (EXHAUST): | 6.970-6.988 mm (0.2744-0.2751 in) |
Service Data
Valve clearance | |
Intake valve clearance: | 0.101-0.152 mm (0.004-0.006 in) |
Exhaust valve clearance: | 0.101-0.152 mm (0.004-0.006 in) |
Oil system | |
Lubrication system: | Pressurized lubrication |
Oil type: | SJ or higher |
Recommended oil: | SAE 10W-30 |
Oil capacity: | 1.6 L (1.69 US. qt, 1.41 Imp. qt.) |
Ignition system | |
Type: | Fixed Ignition System, Digital Spark Advance Ignition (DSAI), Digital Spark Advance Module (DSAM) |
Spark plug: | Champion RC12YC |
Spark plug gap: | 0.76 mm (0.0299 in) |
Spark plug torque: | 27 N·m (2.8 kg·m, 19.9 ft·lb) |
Tightening Torque Specs
Valve clearance | |
Cylinder Head Flange Nut | 16.9-33.9 Nm (12.5-25 ft-lbs) |
Cylinder Head Bolt | 22.6-41.8 Nm (16.7-30.8 ft-lbs) |
Rocker Arm Screw | 11.3 Nm (8.3 ft-lbs) |
Connecting Rod Cap | 22.7 Nm (16.7 ft-lbs.) |
Flywheel Retaining Screw | 66.4 Nm (49 ft-lbs) |
Intake Manifold Mounting | 7.4 Nm (5.5 ft-lbs) |
Carburetor Mounting Nut | 6.2-7.3 Nm (4.6-5.4 ft-lbs.) |
Oil Drain Plug | 13.6 Nm (10 ft-lbs.) |
Oil Pan | 24.4 Nm (18 ft-lbs.) |
Governor Lever Nut | 6.8 Nm (5 ft-lbs.) |
Ignition Module | 4.0-6.2 Nm (2.9-4.6 ft-lbs.) |
Oil Filter | 10.4-12.7 Nm (7.5-9.2 ft-lbs.) |
References
1. Kohler Courage SV710-SV740, Kohler Courage PRO SV810-SV840 service manual. Kohler Co. 2020.
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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