Kohler CV492S Troubleshooting
| Engine Model: Kohler Command CV492S |
| Engine Type: 4-cycle single-cylinder vertical shaft air-cooled gasoline |
| Total Displacement: 29.9 cu.in (490 cc) |
| Rated Engine Power: 17.4 Hp (12.9 kW) at 3600 rpm |
| Carburetor Type: Float with fixed main jet |
____________________________________________________________________________________
| Engine will not start or starts up hard |
No fuel in fuel tank - Fill gasoline up.
Incorrect fuel grade - Use correct gasoline grade.
Dirt and debris in fuel system - Remove debris and dirt.
Damaged spark plug wiring connection - Check spark plug wiring connection, repair or change.
Spark plug is defective - Change spark plug as required.
Fuel filter is clogged - Fuel filter needs changing.
Safety contact for brake pedal defective - Install new part.
Wrong carburetor adjustment - Adjusting carburetor correctly.
Poor compression - Inspect and replace wear parts.
Damaged or incorrectly adjusted choke cable - Adjust correctly or replace the cable.
Air intake grill is clogged - Need to wash or clean.
Ignition system malfunction - Inspect ignition system and change failed components.
Defective or stuck throttle cable - Service or change the cable.
Air filter element is clogged - Change or service air filter.
Dirty or faulty fuel pump - Clean or replace fuel pump.
Defective spark plug - Change spark plug.
Faulty or clogged carburetor - Repair or clean carburetor.
Damaged ignition coil - Change ignition coil as required.
Broken or bad valve springs - Install new valve springs.
Stuck valves - Service the valves.
Engine oil insufficient - Add oil to the engine crankcase.
Engine is running overloaded - Load reducing is recommended.
Cooling fins are clogged - Wash or clean as required.
Too lean carburetor mixture - Adjust carburetor properly.
Improper ignition timing - Set the ignition timing properly.
Valve setting is wrong - Adjust valves as required.
Low octane fuel - Change fuel.
Engine is running overloaded - Load reducing is recommended.
Lack of engine oil - Fill up the oil to required level.
Low idle speed setting is incorrect - Correct the settings.
Fuel pump is defective or dirty - Check fuel pump and change if required.
Main bearings or crankshaft failure - Crankshaft or bearings need to be replaced.
Valve clearance is improper - Adjust valve clearance according to specifications.
Piston rings or cylinder bore are worn - Change faulty parts.
Clogged or improperly adjusted carburetor - Clean or properly adjust carburetor.
Clogged air filter - Clean or replace air filter.
Fuel pump is clogged or faulty - Clean or replace fuel pump.
Ignition system problems - Check ignition and replace faulty components.
Damaged cylinder-head gasket - Replace the head gasket.
Stuck or burned valves - Change or clean valves.
Push rod is worn or damaged - Push rod needs to be changed.
Cylinder block components are damaged - Replace defective parts.
Oil filter is dirty (if equipped) - Change or service oil filter.
| Engine uses too much fuel |
Throttle not fully open - Check throttle cable and adjust as required.
Improper carburetor main jet adjustment - Adjust main jet as required.
Defective or loose spark plug - Tighten or change the spark plug.
Burned, worn, or stuck valves - Clean or change valves.
Worn rings, piston, or sleeve - Replace defective components.
Improper valve clearance - Adjust valve clearance according to specifications.
| Engine consuming too much oil |
Damaged seals or gaskets - Replace defective parts.
Valve guides and stems are worn - Replace the valves.
Worn or stuck piston rings - Have piston rings replaced.
Cylinder liner or piston is scuffed - Inspect piston and liner, replace as required.
Breather hose or pipe is clogged - Change or service.
____________________________________________________________________________________
| Small Engines Technical Specifications |
| Car Engines Technical Specifications |
| Outboard Engines Technical Specifications |
| Industrial Engines Technical Specifications |
