Kohler CV16S Troubleshooting
| Engine Model: Kohler Command CV16S |
| Engine Type: 4-cycle single-cylinder vertical shaft air-cooled gasoline |
| Total Displacement: 26 cu.in (426 cc) |
| Rated Engine Power: 16 Hp (11.9 kW) at 3600 rpm |
| Carburetor Type: Float with fixed main jet |
____________________________________________________________________________________
| Engine hard starting or not starting |
No gasoline in tank - Fill fuel up.
Wrong fuel grade - Use quality gasoline.
There is air in the fuel system - Bleed the system.
Spark plug wiring connection is defective - Inspect the spark plug wire connection, replace or repair.
Defective spark plug - Install new spark plug.
Fuel filter is plugged - Fuel filter needs to be replaced.
Safety contact for brake pedal defective - Install new part.
Carburetor problems - Carburetor diagnostics required.
Low compression - Check and replace worn parts.
Choke cable is unadjusted or damaged - Adjust properly or replace the cable.
Air intake grill is clogged - Need to wash or clean.
Ignition system failure - Test ignition and replace failed parts.
Defective or stuck choke cable - Replace or service the cable.
Dirty air filter element - Service or replace air filter.
Fuel pump is defective or dirty - Check fuel pump and change if required.
| Engine starts but immediately stops |
Defective spark plug - Spark plug need to be replaced.
Carburetor is defective or dirty - Replace or service carburetor.
Ignition coil is damaged - Install a new ignition coil.
Bad or damaged valve springs - New valve springs need to be installed.
Valves are stuck - Valves need to be cleaned.
Lack of engine oil - Add oil to the engine crankcase.
Engine is running overloaded - Reduce the load.
Air intake screen is blocked - Need to clean or wash.
Too lean carburetor mixture - Use proper settings.
Incorrect ignition timing - Set the ignition timing correctly.
Valve setting is incorrect - Adjust valves correctly.
| Abnormal engine noise or knocking |
Stale or low octane fuel - Use correct gasoline.
Engine is overloaded - Reduce load.
Engine oil level low - Check oil level and add oil as required.
Improperly adjusted low idle speed - Adjustment required.
Dirty or faulty fuel pump - Service or replace fuel pump.
Main bearings or crankshaft are worn out - Replace crankshaft or bearings.
Valve clearance is wrong - Need to adjust valve clearance.
Cylinder bore or piston rings are damaged - Change defective components.
Clogged or incorrectly adjusted carburetor - Service or properly adjust carburetor.
Air filter is dirty - Service or replace air filter.
Fuel pump is clogged or faulty - Check fuel pump and replace if necessary.
Ignition system malfunction - Check ignition and replace faulty components.
Blown cylinder head gasket - Replace the head gasket.
Stuck or burned valves - Replace or clean valves.
Damaged or worn push rod - Replace push rod.
Damaged cylinder block components - Change defective components.
Dirty oil filter element (if equipped) - Replace or service oil filter.
| Engine uses too much fuel |
Choke opening is not full - Replace or adjust choke cable.
Incorrect carburetor main jet adjustment - Adjust it correctly.
Faulty or loose spark plug - Re-tighten or change the spark plug.
Valves are worn, stuck, or burned - Service or change valves.
Piston, sleeve, or rings are damaged - Replace faulty components.
Valve clearance is incorrect - Need to adjust valve clearance.
| Engine consuming too much oil |
Worn gaskets or seals - Defective components must be replaced.
Damaged valve stems or valve guides - Valves replacement required.
Piston rings are stuck or broken - Replace piston rings.
Cylinder liner or piston is worn - Inspect piston and liner, fit new components as necessary.
Breather hose or pipe is clogged - Service or replace.
____________________________________________________________________________________
| Small Engines Technical Specifications |
| Car Engines Technical Specifications |
| Outboard Engines Technical Specifications |
| Industrial Engines Technical Specifications |
