The Kohler KS530 is a 541 cc, (33.0 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine from the 5400 series, manufactured by Kohler Co.
The Kohler KS530 engine has an OHV (overhead valve) design, vertical PTO-shaft, and pressurized lubrication system. This engine is equipped with a one-barrel carburetor and an electronic ignition system.
The cylinder bore is 94.0 mm (3.70 in) and the piston stroke is 78.0 mm (3.10 in). The compression ratio rating is 8.8:1.
The KS530 engine produced 17.3 PS (12.7 KW; 17.0 HP) at 3,600 rpm of horsepower and 40.7 Nm (4.15 kg·m; 30.04 ft·lb) at 2,600 rpm of torque.
The breakdown of the engine code is as follows:
- KS – 5400 Series
- 530 – Numerical designation
General information
Engine Specifications | |
Model | KS530 |
Type | 4-stroke, OHV, single-cylinder |
Displacement | 541 cm 3 (33.0 cu-in) |
Max. horsepower | 17.3 PS (12.7 KW; 17.0 HP) at 3,600 rpm |
Max. torque | 40.7 Nm (4.15 kg·m; 30.04 ft·lb) at 2,600 rpm |
Fuel system | One-barrel carburetor |
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) |
Dimensions (L x W x H) | 457 x 394 x 360 mm (18 x 15.5 x 14.2 in) |
Dry weight | 34.0 kg (75.0 lbs) |
Cylinder Block and Head
Cylinder block | ||
Compression ratio: | 8.8:1 | |
Bore x Stroke | 94.0 X 78.0 mm (3.70 x 3.10 in) | |
Sleeve internal diameter | 94.010-94.035 mm (3.7012-3.7022 in) | |
Piston skirt outer diameter (standard) | 93.975-93.989 mm (3.6998-3.7003 in) | |
Number of piston rings (compression / oil): | 2 / 1 | |
Piston pin outer diameter | 21.995-22.000 mm (0.8659-0.8661 in) | |
Ring-to-groove side clearance: | Top | 0.025-0.065 mm (0.0010-0.0026 in) |
Second | 0.040-0.080 mm (0.0016-0.0032 in) | |
Oil | 0.090-0.210 mm (0.0035-0.0083 in) | |
Ring end gap: | Top | 0.150-0.400 mm (0.0059-0.0157 in) |
Second | 1.000-1.250 mm (0.0394-0.0492 in) | |
Main bearing journal outer diameter | Flywheel End | 40.913-40.935 mm (1.6107-1.6116 in) |
PTO End | 40.913-40.935 mm (1.6107-1.6116 in) | |
Connecting rod journal outer diameter | 40.982-41.000 mm (1.6135-1.6142 in) | |
Cylinder Head | ||
Valve Arrangement: | OHV | |
Valves: | 2 (2 per cylinder) | |
Valve head diameter: | INTAKE | 35.875-36.125 mm (1.412-1.422 in) |
EXHAUST | 32.875-33.125 mm (1.294-1.304 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) | |
Valve lift (min): | INTAKE | 9.4 mm (0.370 in) |
EXHAUST | 9.3 mm (0.366 in) |
Tightening torque specs
Tightening torque specs | |
Cylinder head (torque in 2 increments) | Step 1: 24.4 Nm (2.5 kgf·m; 18.0 ft·lb) Step 2: 42.7 Nm (4.4 kgf·m; 31.5 ft·lb) |
Connecting rod (torque in 2 increments) | Step 1: 5.5 Nm (0.6 kgf·m; 4.1 ft·lb) Step 2: 11.8 Nm (1.2 kgf·m; 8.7 ft·lb) |
Flywheel | 115.0 (11.7 kgf·m; 84.9 ft·lb) |
Spark plug | 27 Nm (2.75 kg·m; 20.0 ft·lb) |
Service Information
Valve clearance | |
Intake valve clearance | 0.101-0.152 mm (0.004-.006 in) |
Exhaust valve clearance | 0.101-0.152 mm (0.004-.006 in) |
Oil system | |
Oil type | API SJ or higher |
Recommended oil | SAE 10W-30 |
Oil capacity | 1.4 liters (1.5 US.qts, 1.23 Imp. qts) |
Ignition system | |
Spark plug | Champion RC12YC |
Spark plug gap | 0.76 mm (0.030 in) |
Module air gap | 0.203-0.305 mm (0.008-0.012 in) |
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.
Be the first to comment