Kohler SV601 (20.0 HP) Engine Specs and Review

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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.

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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:

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

Kohler SV601 Engine Specs

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Kohler Courage SV601 (20.0 HP) Engine Specs

Engine Specifications

ModelCourage SV601
Type4-stroke, OHV, single-cylinder
Displacement597 cm 3 (36.4 cu-in)
Max. horsepower20.3 PS (14.9 KW; 20.0 HP) at 3,600 rpm
Max. torque46.1 Nm (4.7 kg·m; 34.0 ft·lb)
Fuel systemCarburetor with a fixed main jet
Cooling systemForced-air
Ignition systemElectronic ignition system
Lubricating systemPressurized lubrication
Starting systemElectric starter
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity

Tightening torque specs

Cylinder head boltStep 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)
FlywheelM12: 88.0 Nm (9.0 kg·m; 65.0 ft·lb)
M10: 66.5 Nm (6.7 kg·m; 48.7 ft·lb)
Spark plug27 Nm (2.75 kg·m; 20.0 ft·lb)

Cylinder Head

Valve Arrangement:OHV
Valves:2 (2 per cylinder)
Valve head diameter:INTAKE37.375-37.625 mm (1.4715-1.4813 in)
EXHAUST32.125-32.375 mm (1.2648-1.2746 in)
Stem outer diameter:INTAKE5.982-6.000 mm (0.2355-0.2362 in)
EXHAUST5.970-5.988 mm (0.235-0.2357 in)

Cylinder block

Compression ratio:8.5:1
Bore x Stroke94.0 X 86.0 mm (3.70 x 3.39 in)
Sleeve internal diameter94.010-94.035 mm (3.7012-3.7022 in)
Number of piston rings (compression / oil):2 / 1
Piston pin outer diameter21.995-22.000 mm (0.8659-0.8661 in)
Main journal diameterFlywheel EndBefore 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 EndBefore 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 clearance0.127 mm (0.005 in)
Exhaust valve clearance0.178 mm (0.007 in)
Oil system
Oil typeAPI SJ or higher
Recommended oilSAE 10W-30
Oil capacity1.5 L (1.59 US. qt, 1.32 Imp. qt.)
Ignition system
Spark plugChampion RC12YC
Spark plug gap0.76 mm (0.030 in)

Also Check:

Final Words

This concludes our discussion of the Kohler SV601 (20.0 HP) engine specs and review; however, if you have any questions regarding this article, please submit them in the comment section below. We will do our best to respond to you as soon as possible.

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