Kohler SV601 (20.0 HP) Engine Specs and Review

Kohler SV601 Engine Specs

The Kohler SV601 is a 36.4 cu·in (597 cc) single-cylinder air-cooled four-stroke internal combustion gasoline engine from the Courage series, made by Kohler Co.

The Kohler SV601  engine cylinder bore is 94.0 mm (3.7 in), and the piston stroke is 86.0 mm (3.39 in). The compression ratio rating is 8.5:1.

The SV601 engine delivered 20.3 PS (14.9 KW; 20.0 Horsepower) at 3,600 rpm of horsepower and 46.1 Nm (4.7 kg·m; 34.0 ft·lb) of torque.

The Kohler SV601 engine has an OHV (overhead valve) design, vertical PTO-shaft, aluminum head and crankcase with cast iron cylinder liner, and pressurized lubrication system.

This Kohler SV601 engine has a fixed main jet, a carburettor, and an electronic ignition system.

The breakdown of the Kohler SV601 engine code is as follows:

  • S – Courage series
  • V – Vertical PTO shaft
  • 601 – Numerical designation

Kohler SV601 Engine Specs

Kohler Courage SV601 (20.0 HP) Engine Specs

Engine Specifications

Model Courage SV601
Type 4-stroke, OHV, single-cylinder
Displacement 597 cm 3 (36.4 cu-in)
Max. horsepower 20.3 PS (14.9 KW; 20.0 HP) at 3,600 rpm
Max. torque 46.1 Nm (4.7 kg·m; 34.0 ft·lb)
Fuel system Carburetor with a fixed main jet
Cooling system Forced-air
Ignition system Electronic ignition system
Lubricating system Pressurized lubrication
Starting system Electric starter
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity

Tightening torque specs

Cylinder head bolt Step 1: 20.5 Nm (2.1 kg·m; 15.1 ft·lb)
Step 2: 41.0 Nm (4.2 kg·m; 30.3 ft·lb)
Flywheel M12: 88.0 Nm (9.0 kg·m; 65.0 ft·lb)
M10: 66.5 Nm (6.7 kg·m; 48.7 ft·lb)
Spark plug 27 Nm (2.75 kg·m; 20.0 ft·lb)

Cylinder Head

Valve Arrangement: OHV
Valves: 2 (2 per cylinder)
Valve head diameter: INTAKE 37.375-37.625 mm (1.4715-1.4813 in)
EXHAUST 32.125-32.375 mm (1.2648-1.2746 in)
Stem outer diameter: INTAKE 5.982-6.000 mm (0.2355-0.2362 in)
EXHAUST 5.970-5.988 mm (0.235-0.2357 in)

Cylinder block

Compression ratio: 8.5:1
Bore x Stroke 94.0 X 86.0 mm (3.70 x 3.39 in)
Sleeve internal diameter 94.010-94.035 mm (3.7012-3.7022 in)
Number of piston rings (compression / oil): 2 / 1
Piston pin outer diameter 21.995-22.000 mm (0.8659-0.8661 in)
Main journal diameter Flywheel End Before S/N 3703200003: 44.913-44.935 mm (1.7682-1.7691 in)
After S/N 3703200013: 44.870-44.895 mm (1.7665-1.7675 in)
PTO End Before S/N 3703200003: 41.913-41.935 mm (1.6501-1.6510 in)
After S/N 3703200013: 41.855-41.880 mm (1.6478-1.6488 in)

Service Information

Valve clearance
Intake valve clearance 0.127 mm (0.005 in)
Exhaust valve clearance 0.178 mm (0.007 in)
Oil system
Oil type API SJ or higher
Recommended oil SAE 10W-30
Oil capacity 1.5 L (1.59 US. qt, 1.32 Imp. qt.)
Ignition system
Spark plug Champion RC12YC
Spark plug gap 0.76 mm (0.030 in)

Also Check:

Final Words

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