Kohler K361

Kohler K361The Kohler K361 is a 588 cc (35.89 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine from K-series, manufactured by Kohler Co.

The Kohler K361 engine has an OHV (overhead valves) design and horizontal PTO-shaft. This engine was equipped with side draft carburetor with adjustable jet and battery ignition systems. The K361 engine used dry type air cleaner.

The cylinder bore is 95.3 mm (3.75 in) and the piston stroke is 82.6 mm (3.25 in). This engine produced 18.2 PS (13.4 kW; 18.0 HP) at 3,600 rpm of horsepower.

The breakdown of the engine code is as follows:

  • K – K-series
  • 36 – Approximate daisplacement (cu·in)
  • 1 – Single cylinder
  • Suffix (engine is available with the following options):
    S – Electric starter;
    T – Retractable starter;
    ST – Electric and retractable starter;
    A – Special oil pan;
    C – Clutch model;
    P – Pump model;
    Q – Quled model;

General information

Engine Specifications
ModelK361
Type4-stroke, L-head, single cylinder
Displacement588 cm 3 (35.88 cu-in)
Max. horsepower18.2 PS (13.4 kW; 18.0 HP) at 3,600 rpm
Max. torque (crank PTO)
Fuel systemSide-draft carburetor
Cooling systemForced-air
Ignition systemBattery ignition system
Lubricating systemSplash type
Starting systemRecoil or electric starter
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity

Cylinder Block and Head

Cylinder block
Compression ratio:
Bore x Stroke95.3 X 82.6 mm (3.75 x 3.25 in)
Sleeve internal diameter95.250 mm (3.75 in)
Piston skirt outer diameter95.060 mm (3.7425 in)
Number of piston rings (compression / oil):2 / 1
Cylinder Head
Valve Arrangement:OHV
Valves:2

Tightening torque specs

Tightening torque specs
Cylinder head bolt41-48 Nm; 4.2-4.9 kg·m; 30-35 ft·lb
Flywheel nut81-95 Nm; 8.3-9.7 kg·m; 60-70 ft·lb
Spark plug25-30 Nm; 2.55-3.06 kg·m; 18-22 ft·lb

Service Information

Engine
Max speed3,600 rpm
Valve clearance
Intake valve clearance0.13 mm (0.0051 in)
Exhaust valve clearance0.13 mm (0.0051 in)
Oil system
Oil typeAPI SF or SG
Recommended oil Summer: SAE 30W
Winter: SAE 5W-20, 5W-30
Oil capacity K321: 1.9 L (2.01 US. qt, 1.67 Imp. qt.)
K321A: 1.4 L (1.5 US. qt, 1.23 Imp. qt.)
Ignition system
Spark plugChampion: RH10
Spark plug gap0.89 mm (0.035 in)
Ignition timing20° B.T.D.C.
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

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