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| Home / Engines / Kohler Engines / Kohler SV735 |
Kohler Courage SV735 Problems
| Engine Model: Kohler Courage SV735 |
| Engine Type: 4-cycle vertical shaft V-twin cylinder OHV gasoline engine |
| Total Displacement: 44.0 cu.in (725 cc) |
| Rated Engine Power: 26 Hp (19.4 kW) at 3600 rpm |
| Fuel System: One-barrel carburetor with fixed main jet |
| Engine will not start or starts up hard |
No gasoline in tank - Fill gasoline up.
Incorrect fuel grade - Use quality fuel.
Dirty fuel system - Check and clean.
Faulty spark plug wire connection - Inspect the spark plug wire connection, replace or repair.
Spark plug is damaged - Install new spark plug.
Dirty fuel filter - Install new filter.
Faulty safety switch - Change damaged switch.
Carburetor is not working properly - Inspect and adjust.
Bad compression - Check and change damaged parts.
Choke cable is worn or not adjusted properly - Adjust correctly or replace the cable.
| Unstable engine running |
Plugged cooling fins - Wash or clean as required.
Ignition system is defective - Inspect ignition system and change failed components.
Choke cable is stuck or defective - Clean or replace the cable.
Plugged air filter - Clean or change air filter.
Fuel pump is faulty or clogged - Check fuel pump and change if required.
| Engine stalls after starting |
Spark plug is faulty - Change spark plug as required.
Carburetor is defective or clogged - Repair or clean carburetor.
Defective ignition coil - Install a new ignition coil.
Valve springs are bad or broken - Replace valve springs.
Valves sticking - Clean the valves.
| Engine overheats |
Lack of engine oil - Fill up the oil to required level.
Engine is overloaded - Reduce load.
Air intake screen is plugged - Clean and wash as required.
Carburetor fuel mixture is too lean - Adjust carburetor properly.
Ignition timing is improper - Set the ignition timing properly.
Wrong valve setting - Set the valves properly.
| Engine noise or knocking |
Stale gasoline - Use correct gasoline.
Engine overload - Load reducing required.
Engine oil insufficient - Check oil level and add oil as required.
Low idle speed setting is not correct - Correct the settings.
Clogged or damaged fuel pump - Check fuel pump and change if required.
Crankshaft or main bearings failure - Install new parts as as required.
Improper valve clearance - Check and adjust.
Worn piston rings or cylinder bore - Replace defective parts.
| Low engine power |
Improperly or clogged carburetor - Service or properly adjust carburetor.
Air filter is dirty - Change or clean air filter.
Fuel pump is faulty or clogged - Service or replace fuel pump.
Defective ignition - Test ignition and replace failed parts.
Worn cylinder head gasket - Change cylinder head gasket.
Valves are stuck or burned - Replace or service valves.
Worn or bent push rod - Push rod should be replaced.
Worn cylinder block parts - Replace defective components as required.
Oil filter is dirty (if equipped) - Replace or clean oil filter.
| Excessive fuel consumption |
Insufficient choke opening - Inspect choke cable and adjust as required.
Incorrect adjustment of carburetor main jet - Adjust it properly.
Faulty or loose spark plug - Change or re-tighten spark plug.
Burned, worn, or stuck valves - Change or service valves.
Worn piston, rings, or sleeve - Replace defective components as required.
Valve clearance is not correct - Adjust valve clearance.
| Excessive engine oil consumption |
Damaged gaskets or seals - Replace worn parts to avoid leaks.
Valve guides or stems are damaged - Replace defective valves.
Piston rings are stuck or broken - Install new piston rings.
Cylinder liner or piston is damaged - Inspect piston and liner, replace as required.
Blocked breather pipe or hose - Replace or service.
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