Kohler SV830

Kohler SV830The 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 modelCourage PRO SV830
Engine type4-stroke, OHV, V-twin
Displacement725 cm3, (44.24 cu·in)
Max. horsepower25.3 PS (18.6 KW; 25.0 HP) at 3,600 rpm
Max. torque60.7 Nm (6.2 kg·m; 44.8 ft·lb) at 2,200 rpm
Cooling systemForced air
Air cleanerReplaceable, paper element
Lubricating systemPressurized lubrication
Ignition system Fixed Ignition System,
Digital Spark Advance Ignition (DSAI),
Digital Spark Advance Module (DSAM)
Fuel systemCarburetor with fixed main jet (Keihin, Nikki or Walbro)
Fuel consumption
Fuel tank capacity
Fuel usedUnleaded gasoline (octane number 86 or higher)
Starting systemElectric starter
Dimensions (L x W X H)470 x 452 x 358 mm (18.5 x 17.8 x 14.1 in)
Dry weight41.3 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 Nut16.9-33.9 Nm (12.5-25 ft-lbs)
Cylinder Head Bolt22.6-41.8 Nm (16.7-30.8 ft-lbs)
Rocker Arm Screw11.3 Nm (8.3 ft-lbs)
Connecting Rod Cap22.7 Nm (16.7 ft-lbs.)
Flywheel Retaining Screw66.4 Nm (49 ft-lbs)
Intake Manifold Mounting7.4 Nm (5.5 ft-lbs)
Carburetor Mounting Nut6.2-7.3 Nm (4.6-5.4 ft-lbs.)
Oil Drain Plug13.6 Nm (10 ft-lbs.)
Oil Pan24.4 Nm (18 ft-lbs.)
Governor Lever Nut6.8 Nm (5 ft-lbs.)
Ignition Module4.0-6.2 Nm (2.9-4.6 ft-lbs.)
Oil Filter10.4-12.7 Nm (7.5-9.2 ft-lbs.)


1. Kohler Courage SV710-SV740, Kohler Courage PRO SV810-SV840 service manual. Kohler Co. 2020.

Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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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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