Kohler SV810 Troubleshooting
| Engine Model: Kohler Courage Pro SV810 |
| Engine Type: 4-cycle V-Twin cylinder vertical shaft air-cooled gasoline |
| Total Displacement: 44 cu.in (725 cc) |
| Rated Engine Power: 20 Hp (14.9 kW) at 3600 rpm |
| Carburetor Type: One-Barrel with fixed main jet |
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| Engine doesn't start or starts hard |
Empty fuel tank - Fill it up.
Incorrect fuel grade - Use correct gasoline grade.
Air in fuel system - Bleed fuel system.
Spark plug wire is disconnected or loose - Inspect the spark plug wire connection, replace or repair.
Spark plug is faulty - Spark plug need to be replaced.
Fuel filter is plugged - Fuel filter needs to be replaced.
Faulty safety switch - Change damaged switch.
Carburetor problems - Carburetor diagnostics required.
Low cylinder compression - Check cylinder block and replace worn parts.
Throttle cable is worn or adjusted improperly - Adjust properly or replace the cable.
Air intake grill is clogged - Wash or clean as required.
Defective ignition system - Inspect ignition system and change failed components.
Throttle cable is stuck or defective - Change or clean the cable.
Air filter is dirty - Service or change air filter.
Fuel pump is damaged or dirty - Clean or install new fuel pump.
| Engine starts and stalls immediately |
Faulty spark plug - Install new spark plug.
Carburetor is dirty or faulty - Clean or install new carburetor.
Defective ignition coil - Ignition coil should be replaced.
Loose or broken valve springs - Install new valve springs.
Valves sticking - Valves need to be cleaned.
Engine oil level is insufficient - Check oil level and add oil as required.
Engine is under excessive load - Load reducing is recommended.
Air intake grill is clogged - Wash or clean as required.
Carburetor is running lean - Make the correct settings.
Bad ignition timing - Ignition timing needs to be adjusted correctly.
Valve setting is wrong - Set the valves properly.
Low octane gasoline - Use proper fuel.
Engine overloaded - Reduce the load.
Lack of engine oil - Fill up the engine oil.
Incorrectly adjusted low idle speed - Adjust as required.
Fuel pump is dirty or defective - Test fuel pump and change if necessary.
Crankshaft or main bearings are worn out - Install new parts as as required.
Valve clearance is incorrect - Adjustment procedure required.
Piston rings or cylinder bore are worn - Change faulty components.
Carburetor is dirty or improperly adjusted - Carburetor needs to be adjusted correctly or cleaned.
Air filter is dirty - Service or change air filter.
Fuel pump is damaged or dirty - Service or change fuel pump.
Ignition system is defective - Inspect ignition system and change faulty parts.
Worn cylinder head gasket - Install new head gasket.
Valves are burned or stuck - Service or change valves.
Push rod is worn or defective - Install a new push rod.
Faulty cylinder block parts - Replace defective parts as required.
Clogged oil filter (if equipped) - Change or clean oil filter.
| Engine using too much gasoline |
Choke opening is not full - Replace or adjust choke cable.
Carburetor main jet adjustment is improper - Adjust main jet as required.
Spark plug is loose or faulty - Re-tighten or replace spark plug.
Stuck, burned, or worn valves - Replace or clean valves.
Worn rings, piston, or sleeve - Replace defective parts.
Valve clearance is improper - Check and adjust.
| Engine oil consumption is too high |
Gaskets or seals may be damaged - Worn parts need to be replaced.
Damaged valve guides or valve stems - Need to replace the valves.
Piston rings are defective or worn - Change piston rings.
Scuffed piston or cylinder liner - Inspect liner and piston, change as necessary.
Breather pipe or hose is clogged - Replace or service.
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