The Kohler CV17/CV17S is a 561 cc (34.2 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine from the Command PRO series, manufactured by Kohler Co.
The Kohler CV17 engine has an OHV (overhead valve) design, an aluminum block with cast iron cylinder liners, vertical PTO-shaft, pressurized lubrication system. This engine is equipped with a carburetor (Nikki or Keihin) with a fixed main jet and electronic ignition system.
The cylinder bore and the piston stroke are 73.0 mm (2.87 in) and 67.0 mm (2.64 in), respectively. Compression ratio rating is 8.5:1.
The Kohler CV17 engine produced 17.3 PS (12.7 KW; 17.0 HP) at 3,600 rpm of horsepower and 42.9 Nm (4.38 kg·m; 31.66 ft·lb) at 2,400 rpm of torque.
The breakdown of the engine code is as follows:
- C – Command series
- V – Vertical PTO shaft
- 17 – Numerical designation
- S – Electric start
General information
| Engine Specifications | |
| Model | Command PRO CV17 / CV17S |
| Type | 4-stroke, OHV, V-twin |
| Displacement | 561 cm 3 (34.2 cu-in) |
| Max. horsepower | 17.3 PS (12.7 KW; 17.0 HP) at 3,600 rpm |
| Max. torque | 42.9 Nm (4.38 kg·m; 31.66 ft·lb) at 2,400 rpm |
| Fuel system | Carburetor with a fixed main jet (Nikki or Keihin) |
| 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) | 538 x 451 x 363 mm (21.2 x 17.7 x 14.3 in) |
| Dry weight | 41.0 kg (90.0 lbs) |
Cylinder Block and Head
| Cylinder block | ||
| Compression ratio: | 8.5:1 | |
| Bore x Stroke | 73.0 mm X 67.0 mm (2.87 x 2.64 in) | |
| Sleeve internal diameter | 73.006-73.031 mm (2.8742-2.8752 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Thrust face outer diameter | 72.966-72.984 mm (2.8727-2.8734 in) | |
| Piston pin outer diameter | 16.995-17.000 mm (0.6691-0.6693 in) | |
| Ring-to-groove side clearance: | Top | 0.040-0.085 mm (0.0016-0.0033 in) |
| Second | 0.030-0.080 mm (0.0012-0.0031 in) | |
| Oil | 0.046-0.201 mm (0.0018-0.0079 in) | |
| Ring end gap: | Top | 0.180-0.380 mm (0.0071-0.0150 in) |
| Second | 0.180-0.440 mm (0.0071-0.0173 in) | |
| Crankshaft main journal diameter: | 40.913-40.935 mm (1.6107-1.6116 in) | |
| Crankpin journal diameter: | 35.955-35.973 mm (1.4155-1.4163 in) | |
| Cylinder Head | ||
| Valve Arrangement: | OHV, gear drive | |
| Valves: | 2 | |
| Valve head diameter: | INTAKE | 33.370-33.630 mm (1.3138-1.324 in) |
| EXHAUST | 29.370-29.630 mm (1.1563-1.1665 in) | |
| Stem outer diameter: | INTAKE | 6.982-7.000 mm (0.2749-0.2756 in) |
| EXHAUST | 6.970-6.988 mm (0.2744-0.2751 in) | |
Tightening torque specs
| Tightening torque specs | |
| Cylinder head |
Nut (torque in 2 increments): Step 1: 16.9 Nm (1.72 kg·m; 12.5 ft·lb) Step 2: 35.5 Nm (3.62 kg·m; 26.2 ft·lb) Bolt (torque in 2 increments) Step 1: 22.6 Nm (2.31 kg·m; 16.7 ft·lb) Step 2: 41.8 Nm (4.26 kg·m; 30.8 ft·lb) |
| Flywheel | 66.4 Nm (6.77 kg·m; 49 ft·lb) |
| Spark plug | 27 Nm (2.75 kg·m; 20.0 ft·lb) |
Service Information
| Oil system | |
| Oil type | API SG, SH, SJ, or higher |
| Recommended oil | SAE 10W-30 |
| Oil capacity |
W/o oil filter: 1.7 L (1.8 US. qt, 1.5 Imp. qt.) With oil filter: 1.9 L (2.0 US.qts, 1.7 Imp. qts) |
| Ignition system | |
| Spark plug | Champion RC12YC |
| Spark plug gap | 0.76 mm (0.030 in) |
| Ignition module air gap | 0.280-0.330 mm (0.011-0.013 in) |
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