Kohler M16

Kohler M16The Kohler M16 is a 588 cc, (35.88 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft, manufactured by Kohler Co for general-purpose applications.

The cylinder bore is 3.75 mm (0.15 in) and the piston stroke is 3.25 mm (0.13 in). The compression ratio rating is 7.3:1.

The Kohler M16 engine produced 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm of maximum output power.

The Kohler M16 features:

  • L-head design
  • Electronic magneto ignition system
  • Side-draft carburetor
  • Centrifugal governor
  • Splash lubrication system
  • Forced air cooling system
  • Recoil or electric starter

General information

Engine Specifications
Engine model M16
Engine type 4-stroke, L-head, single-cylinder
Displacement 588 cm3, (35.88 cu·in)
Max. horsepower 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm
Max. torque
Cooling system Forced air
Air cleaner High-density paper
Lubricating system Splash
Ignition system Electronic magneto ignition system
Fuel system Side-draft carburetor with adjustable jet
Fuel tank capacity 5.5 L (1.45 US. gal. 1.21 Imp. gal.)
Fuel used Unleaded gasoline (octane number 86 or higher)
Starting system Recoil or electric starter
Governor Centrifugal governor
PTO shaft rotation Counterclockwise (from PTO shaft side)
Dry weight 58.0 kg (127.9 lbs)

Cylinder Block and Head

Cylinder block
Compression ratio: 7.3:1
Cylinder bore: 3.75 mm (0.15 in)
Piston stroke: 3.25 mm (0.13 in)
Cylinder internal diameter (standard): 95.2373-95.2627 mm (3.7495-3.7505 in)
Piston skirt outer diameter (standard): 95.1357-95.1610 mm (3.7455-3.7465 in)
Number of piston rings (compression / oil): 2/1
Connecting rod small end diameter (standard): 22.2428-2.2505 mm (0.8757-0.0886 in)
Piston pin diameter: 22.2300-22.2377 mm (0.8752-0.8755 in)
Side clearance (Top): 0.152 mm (0.006 in)
Side clearance (Second): 0.152 mm (0.006 in)
Ring end gap (Top): 0.254-0.508 mm (0.010-0.020 in)
Ring end gap (Second): 0.254-0.508 mm (0.010-0.020 in)
Crankpin journal diameter: 38.0873-38.1000 mm (1.4995-1.5 in)
Crankshaft center distance: 1.625 mm (0.065 in)
Cylinder head
Valve arrangement: L-head, gear driven
Valves: 2
Valve steam min diameter (INTAKE): 7.8816 mm (0.3103 in)
Valve steam min diameter (EXHAUST): 7.8079 mm (0.3074 in)

Service Data

Valve clearance
Intake valve clearance: 0.20-0.25 mm (0.0079-0.0098 in)
Exhaust valve clearance: 0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Lubrication system: Splash
Oil type: API SF or SG
Recommended oil: Summer: SAE 30 Winter: SAE 5W-20, 5W-30
Oil capacity: 1.9 L (2.01 US. qt, 1.67 Imp. qt.)
Fuel system
Type: Side-draft carburetor
Preliminary main fuel screw setting: 2-1/2 turns
Preliminary idle fuel screw setting: 2-1/2 turns
Float level: 11/64 ± 1/32
Float drop: 1-1/32
Ignition system
Type: Electronic magneto ignition system
Spark plug: Champion RH10
Spark plug gap: 0.65 mm (0.0256 in)
Spark plug torque: 27 N·m (2.8 kg·m, 19.9 ft·lb)
Ignition coil air gap 0.3-0.4 mm (0.012-0.016 in)


Manufacturer or Brand Models
Lawn tractors
Wheel Horse 416-8
ATTENTION! Dear visitors, this is an informational database of technical specifications, we are not a parts supplier or a marketplace.

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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