Kohler K341 (16.0 HP, 588 cc) Engine: Specs & Review
Kohler K341 Engine Specs
The Kohler K341 is a 35.88 cu·in, 588 cc single-cylinder air-cooled four-stroke internal combustion gasoline engine from K-series, made by Kohler Co.
The Kohler K341 engine has a horizontal PTO shaft and L-head (side valve) design. This Kohler K341 engine can be fitted with Kohler or Walbro carburetor, magneto, battery, or breakerless ignition systems. The Kohler K341 engine used a paper air cleaner (an oiled foam pre-cleaner was available).
The cylinder bore is 3.75 in (95.3 mm), and the piston stroke is 3.25 in (82.6 mm). This engine delivered 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm horsepower.
The breakdown of the engine code is as follows:
- K – K-series
- 34 – Approximate displacement (cu·in)
- 1 – Single cylinder
- Suffix (engine is available with the following options):
- S – Electric starter;
- T – Retractable starter;
- ST – Electric and retractable starter;
- EP – Electric plant;
- A – Special oil pan;
- C – Clutch model;
- G – Generator applications;
- P – Pump model;
- Q – Quled model;
- R – Reduction gear;
Engine Specifications
| Model | K341 |
| Type | 4-stroke, L-head, single cylinder |
| Displacement | 588 cm 3 (35.88 cu-in) |
| Max. horsepower | 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm |
| Max. torque (crank PTO) | – |
| Fuel system | Carburetor (Kohler or Walbro, fixed main jet or adjustable main jet) |
| Cooling system | Forced-air |
| Ignition system | Magneto or battery or breakerless ignition system |
| Lubricating system | Splash type |
| Starting system | Recoil or electric starter |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel tank capacity | – |
Cylinder Head
| Valve Arrangement: | L-head (sidevalve) | |
| Valves: | 2 | |
| Valve head diameter: | INTAKE | 34.798-35.052 mm (1.370-1.380 in) |
| EXHAUST | 34.798-35.052 mm (1.370-1.380 in) | |
| Stem outer diameter (standard): | INTAKE | 7.887-7.899 mm (0.3105-0.3110 in) |
| EXHAUST | 7.833-7.851 mm (0.3084-0.3091 in) | |
Cylinder block
| Compression ratio: | – | |
| Bore x Stroke | 95.3 X 82.6 mm (3.75 x 3.25 in) | |
| Sleeve internal diameter | 95.2627-95.2373 mm (3.7505-3.7495 in) | |
| Piston skirt outer diameter | 95.0595-95.0214 mm (3.7425-3.741 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Ring end gap | Top | 0.177-0.432 mm (0.007-0.017 in) |
| Second | 0.177-0.432 mm (0.007-0.017 in) | |
| Connecting rod small end ID | 22.2428-22.2504 mm (0.8757-0.876 in) | |
| Piston pin outer diameter | 22.2300-22.2352 mm (0.8752-0.8754 in) | |
Tightening torque specs
| Cylinder head bolt | 34-41 Nm; 3.5-4.2 kg·m; 25-30 ft·lb |
| Flywheel | Nut: 68-81 Nm; 6.98.2 kg·m; 50-60 ft·lb Screw: 30-35 Nm; 3.0-3.5 kg·m; 22-27 ft·lb |
| Spark plug | 25-30 Nm; 2.55-3.06 kg·m; 18-22 ft·lb |
Service Information
| Engine | |
| Max speed | 3,600 rpm |
| 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 | |
| Oil type | API 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: 1.2 L (1.27 US. qt, 1.06 Imp. qt.) |
| Ignition system | |
| Spark plug | Champion: RH10 |
| Spark plug gap | 0.65 mm (0.0256 in) |
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Final Words
This concludes our discussion of the Kohler K341 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.