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Kohler Courage SV735S Problems
| Engine Model: Kohler Courage SV735S |
| Engine Type: 4-cycle vertical shaft 2-cylinder air-cooled 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 doesn't start or hard to start |
No gasoline in tank - Fill it up.
Incorrect fuel grade - Use quality gasoline.
Air in fuel tank - Bleed fuel tank.
Defective wiring connection of spark plug - Check spark plug wiring connection, repair or change.
Spark plug is defective - Change spark plug.
Dirty fuel filter - Install new filter.
Brake pedal not depressed - Press the brake pedal.
Wrong carburetor adjustment - Adjusting carburetor correctly.
Low compression - Check and replace worn parts.
Incorrectly adjusted or damaged throttle cable - Adjust correctly or replace the cable.
| Engine runs intermittently |
Air intake screen is blocked - Wash or clean as required.
Defective ignition system - Test ignition and replace failed parts.
Throttle cable is defective or stuck - Change or clean the cable.
Plugged air filter - Clean or replace air filter.
Fuel pump is dirty or defective - Service or replace fuel pump.
| Engine starts but stops suddenly |
Spark plug is damaged - Change spark plug.
Carburetor is dirty or faulty - Clean or change carburetor.
Ignition coil is faulty - Ignition coil must be replaced.
Bad or damaged valve springs - New valve springs need to be installed.
Stuck valves - Clean the valves.
Low engine oil level - Checking oil level and add if necessary.
Engine is under excessive load - Reduce engine load.
Cooling fins are blocked - Clean and wash as required.
Carburetor mixture is too lean - Set the carburetor properly.
Ignition timing is wrong - Ignition timing needs to be adjusted correctly.
Valve setting is incorrect - Adjust valves as required.
Low octane gasoline - Use correct fuel.
Excessive engine load - Reduce engine load.
Not enough engine oil - Checking oil level and add if necessary.
Low idle speed set incorrectly - Adjust idling as required.
Fuel pump is dirty or defective - Check fuel pump and change if required.
Crankshaft or main bearings failure - Have bearings or crankshaft replaced.
Excessive valve clearance - Adjustment procedure required.
Damaged cylinder bore or piston rings - Replace defective parts.
Carburetor is dirty or incorrectly adjusted - Adjust carburetor properly or service it.
Air filter element is clogged - Replace or clean air filter.
Fuel pump is dirty or defective - Inspect fuel pump and change as required.
Ignition system failure - Test ignition and replace failed parts.
Worn cylinder head gasket - Replace the head gasket.
Burned or stuck valves - Clean or change valves.
Damaged or worn push rod - Install a new push rod.
Worn cylinder block components - Defective components need to be replaced.
Clogged oil filter (if equipped) - Service or replace oil filter.
| Excessive fuel consumption |
Throttle did not open fully - Replace or adjust throttle cable.
Carburetor main jet is improperly adjusted - Adjust it properly.
Spark plug is defective or loose - Re-tighten or change the spark plug.
Stuck, worn, or burned valves - Service or change valves.
Rings, sleeve, or piston are damaged - Replace defective components as required.
Valve clearance is wrong - Check and adjust.
| Engine using too much oil |
Worn gaskets or seals - Replace to repair leaks.
Damaged valve guides or valve stems - Install new valves.
Stuck or worn piston rings - Replace piston rings.
Cylinder liner or piston is worn - Inspect liner and piston, change as necessary.
Breather pipe or hose is clogged - Replace or clean.
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