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| Home / Engines / Kohler Engines / Kohler CH16S |
Kohler Command CH16S Problems
| Engine Model: Kohler Command CH16S |
| Engine Type: 4-cycle 1-cylinder horizontal shaft air-cooled gasoline engine |
| Total Displacement: 26.0 cu.in (426 cc) |
| Rated Engine Power: 16 Hp (11.9 kW) at 3600 rpm |
| Fuel System: Walbro or Nikki carburetor with adjustable jet or fixed jet |
| Engine will not start or hard to start |
No fuel in fuel tank - Add gasoline.
Low-quality gasoline - Use correct fuel grade.
Clogged fuel system - Remove clogging.
Spark plug wiring connection is defective - Inspect spark plug wiring connection, change or repair.
Damaged spark plug - Install new spark plug.
Plugged fuel filter - Change fuel filter.
Defective safety switch - Replace if required.
Carburetor incorrectly set - Set carb correctly.
Bad compression - Check and change damaged parts.
Worn or improperly adjusted choke cable - Adjust correctly or change the cable.
| Engine runs roughly |
Air intake screen is plugged - Need to clean or wash.
Ignition failure - Check ignition and replace faulty components.
Faulty or stuck choke cable - Service or change the cable.
Dirty air filter element - Clean or change air filter.
Fuel pump is faulty or clogged - Inspect fuel pump and change as required.
| Engine starts but stops suddenly |
Spark plug is damaged - Install new spark plug.
Carburetor is defective or clogged - Clean or replace carburetor.
Ignition coil is damaged - Install a new ignition coil.
Broken or bad valve springs - Change valve springs.
Stuck valves - Valves need to be cleaned.
| Engine overheated |
Engine oil insufficient - Add oil to the engine crankcase.
Engine overload - Reduce the load.
Cooling fins are clogged - Need to wash or clean.
Carburetor mixture is too lean - Use proper settings.
Bad ignition timing - Set the ignition timing correctly.
Valve setting is wrong - Set the valves correctly.
| Engine noises or knocks |
Low octane gasoline - Use correct fuel.
Engine is overloaded - Reduce engine load.
Insufficient engine oil - Add oil to the engine crankcase.
Incorrectly set low idle speed - Adjust idling as required.
Clogged or damaged fuel pump - Clean or replace fuel pump.
Main bearings or crankshaft wear - Change defective components as required.
Incorrect valve clearance - Check and adjust.
Piston rings or cylinder bore are damaged - Change defective components.
| Low engine power |
Clogged or improperly adjusted carburetor - Clean or correctly adjust carburetor.
Air filter is blocked - Change or clean air filter.
Fuel pump is faulty or clogged - Clean or replace fuel pump.
Ignition system malfunction - Inspect ignition system and change failed components.
Blown cylinder head gasket - Replace cylinder head gasket.
Stuck or burned valves - Clean or change valves.
Worn or bent push rod - Push rod needs to be changed.
Faulty cylinder block components - Replace defective components.
Plugged oil filter (if equipped) - Replace or clean oil filter.
| Engine uses too much fuel |
Choke didn't open fully - Adjust or change choke cable.
Carburetor main jet is incorrectly adjusted - Adjust it properly.
Faulty or loose spark plug - Re-tighten or change the spark plug.
Stuck, worn, or burned valves - Clean or change valves.
Rings, sleeve, or piston are damaged - Change faulty parts.
Incorrect valve clearance - Check and adjust.
| Excessive engine oil consumption |
Seals or gaskets are wearing excessively - Worn parts need to be replaced.
Valve guides or stems are damaged - Replace defective valves.
Worn or broken piston rings - Change piston rings.
Worn cylinder liner or piston - Inspect liner and piston, replace as necessary.
Plugged breather pipe or hose - Replace or service.
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