Kohler CV460 Troubleshooting
| Engine Model: Kohler Command CV460 |
| Engine Type: 4-cycle single-cylinder vertical shaft air-cooled gasoline |
| Total Displacement: 27.9 cu.in (460 cc) |
| Rated Engine Power: 16 Hp (11.9 kW) at 3600 rpm |
| Carburetor Type: Float with fixed main jet |
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| Engine hard to start or will not start |
Gas tank is empty - Fill gasoline up.
Low-quality gasoline - Use quality fuel.
Air in fuel tank - Bleed fuel tank.
Damaged spark plug wiring connection - Inspect spark plug wiring connection, change or repair.
Spark plug is damaged - Change spark plug as required.
Plugged fuel filter - Change fuel filter.
Faulty safety switch - Change damaged switch.
Carburetor settings incorrect - Adjusting as required.
Poor engine compression - Check cylinder block and replace damaged components.
Choke cable is not adjusted properly or worn - Change cable or adjust correctly.
| Engine runs intermittently |
Clogged cooling fins - Clean and wash as required.
Defective ignition - Check ignition and replace faulty components.
Stuck or defective throttle cable - Clean or change the cable.
Air filter is blocked - Clean or replace air filter.
Dirty or damaged fuel pump - Check fuel pump and replace if necessary.
| Engine stalls after starting |
Damaged spark plug - Replace spark plug.
Faulty or clogged carburetor - Service or repair carburetor.
Ignition coil is faulty - Replace ignition coil as necessary.
Broken or bad valve springs - Replace valve springs.
Valves sticking - Service the valves.
Engine oil level is low - Fill up the oil to required level.
Engine is under excessive load - Load reducing is recommended.
Air intake grill is clogged - Need to wash or clean.
Carburetor is running lean - Adjust carburetor correctly.
Ignition timing is improper - Adjust ignition timing as required.
Incorrect valve setting - Valves needs to be set correctly.
| Abnormal engine knocking or noise |
Stale fuel - Change fuel.
Excessive engine load - Reduce the load.
Engine oil level is low - Fill the crankcase with engine oil.
Too low idle RPM - Test and adjust.
Fuel pump is dirty or defective - Inspect fuel pump and change as required.
Crankshaft or main bearings wear - Install new parts as as required.
Incorrect valve clearance - Adjust to proper valve clearance.
Worn piston rings or cylinder bore - Change defective parts.
Incorrectly adjusted or clogged carburetor - Carburetor needs to be adjusted correctly or cleaned.
Clogged air filter - Clean or replace air filter.
Fuel pump is defective or dirty - Check fuel pump and change if required.
Ignition system failure - Inspect ignition system and change failed components.
Defective cylinder head gasket - Cylinder-head gasket replacement required.
Valves are burned or stuck - Change or service valves.
Worn or damaged push rod - Push rod should be replaced.
Cylinder block parts are damaged - Replace defective components.
Plugged oil filter (if equipped) - Service or replace oil filter.
Choke doesn't open well - Adjust or replace choke cable.
Carburetor main jet adjustment is incorrect - Adjust main jet as required.
Spark plug is loose or defective - Spark plug need to be tightened or replaced.
Valves are stuck, worn, or burned - Change or service valves.
Worn sleeve, rings, or piston - Replace defective components as required.
Improper valve clearance - Adjust valve clearance according to specifications.
| High engine oil consumption |
Defective seals or gaskets - Worn parts need to be replaced.
Valve stems or guides are damaged - Replace the valves.
Piston rings are defective or worn - Piston rings need to be replaced.
Scuffed cylinder liner or piston - Inspect liner and piston, replace as necessary.
Breather hose or pipe is blocked - Change or service.
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