Kohler COMMAND CH15 - User Manual

Questions and Answers

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Heidi FreyAug 12, 2025
How to fix a Kohler Engine that cranks but won't start?
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  Melissa WelchAug 13, 2025
  If your Kohler Engine cranks but refuses to start, begin by checking if the fuel tank is empty and fill it if needed. Then, ensure the fuel shut-off valve is open. Inspect the fuel system for any dirt or water and clean it. Also, check for a clogged fuel line and clear it. Verify that the spark plug lead is connected and the key or kill switch is in the 'on' position. If these steps don't work, the spark plug, ignition module, or oil sending unit may be faulty and require replacement. Lastly, ensure the choke is closing properly.
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Maria SimmonsAug 16, 2025
Why does my Kohler COMMAND CH15 start but not stay running?
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  deborah44Aug 16, 2025
  If your Kohler Engine starts but doesn't keep running, first clear any restrictions from the fuel tank vent. Inspect the fuel system for dirt or water and clean it if necessary. Repair or replace any faulty choke or throttle controls/cables. Check and secure any loose wires or connections. If these steps don't resolve the issue, you may need to replace the cylinder head gasket, fuel pump, or carburetor.
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Charles DavisAug 20, 2025
What to do if my Kohler COMMAND CH15 starts hard?
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  anthony76Aug 20, 2025
  If your Kohler Engine starts hard, make sure the hydrostatic transmission is in neutral. Inspect the fuel system for dirt or water, and clean if needed. Clear any clogged fuel lines. Check and secure any loose or faulty wires or connections. Repair or replace any faulty choke or throttle controls/cables. Replace the spark plug if faulty. Check the engine compression. Repair or replace the Automatic Compression Release (ACR) mechanism if it's faulty.
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Cynthia MooreAug 25, 2025
How to troubleshoot a Kohler COMMAND CH15 that will not crank?
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  olivermichaelAug 25, 2025
  If your Kohler Engine will not crank, ensure the hydrostatic transmission is in neutral. Charge or replace the battery if it's discharged. Disengage the safety interlock switch. Check and secure any loose or faulty wires or connections. If these steps don't work, you may need to replace the key switch or ignition switch, or the electric starter/starter solenoid. Check the retractable starter engagement. Inspect and repair any seized internal engine components.
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Linda HarrisAug 27, 2025
Why does my Kohler COMMAND CH15 use an excessive amount of oil?
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  roberttownsendAug 28, 2025
  If your Kohler Engine uses an excessive amount of oil, ensure you are using the correct oil viscosity/type. Drain excess oil if the crankcase is overfilled. Check and clean the breather if it's clogged or improperly assembled. If the problem persists, you may need to replace worn or broken piston rings, repair or replace the cylinder bore, or replace worn valve stems or valve guides.
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Noah HoodAug 31, 2025
What causes a Kohler Engine to run but miss?
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  rballAug 31, 2025
  If your Kohler Engine runs but misses, first inspect the fuel system for dirt or water and clean it. Reconnect the spark plug lead if it's disconnected. Check and secure any loose wires or connections. If the engine overheated, allow it to cool down. If the problem persists, replace the ignition module.
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flongSep 4, 2025
How do I fix a Kohler Engine that will not idle?
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  fullerjulieSep 4, 2025
  If your Kohler Engine will not idle, clear any restrictions from the fuel tank cap vent. Inspect the fuel system for dirt or water and clean it. Replace the spark plug if faulty. Adjust the idle fuel adjusting needle and the idle speed adjusting screw. Check the engine compression. Clean or replace the carburetor if there's stale fuel and/or gum in it.
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Lisa FloydSep 7, 2025
What should I do if my Kohler Engine knocks?
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  Debbie PrinceSep 7, 2025
  If your Kohler Engine knocks, reduce the engine load if it's excessive. Check and add crankcase oil to the proper level if it's low. Use the recommended fuel. Inspect and repair any internal wear or damage.

Summary

Safety Precautions

Explosive Fuel

Warning about gasoline's flammability and explosion risk. Provides safe storage and handling guidelines.

Rotating Parts

Warning to keep body parts and clothing away from moving engine components during operation.

Hot Parts

Caution regarding extremely hot engine components during and after operation to prevent burns.

Electrical Shock

Caution against touching electrical wires or components while the engine is running.

Additional Safety Precautions

Accidental Starts

Warning that accidental starting can cause severe injury or death; advises disabling engine before servicing.

Carbon Monoxide

Warning about deadly carbon monoxide from exhaust fumes; advises avoiding enclosed spaces.

Explosive Gas

Warning about explosive hydrogen gas from batteries during charging; advises ventilation and ignition source avoidance.

Oil Recommendations

Oil Type

Viscosity Grades Table

Fuel Recommendations

Explosive Fuel Warning

Reiterates warning about gasoline flammability and explosion risk, with specific storage and handling advice.

General Recommendations

Operating Instructions

Pre-Start Checklist

Starting Engine

Maintenance Instructions

Accidental Starts Warning

Warning about disabling the engine before maintenance to prevent accidental starts and injury.

Maintenance Schedule

Check Oil Level

Procedure for checking engine oil level using the dipstick, emphasizing importance and correct procedure.

Oil Sentry and Oil Filter Service

Change Oil Filter

Change Oil

Air Cleaner Service

Service Precleaner

Service Paper Element

Ignition and Fuel System

Check Spark Plug

Carburetor Troubleshooting and Adjustments

Carburetor Adjustment

Troubleshooting

Limited Engine Warranty

Emission Control Systems Warranty

Warranty Coverage and Limitations

Kohler COMMAND CH15 Specifications

General

Compression Ratio	8.5:1
Cooling System	Air-cooled
Starting System	Recoil
Lubrication System	Splash
Spark Plug	Champion RC12YC
Governor Type	Mechanical
Displacement	15.0 cu in
Horsepower (hp)	5.0 hp at 3600 rpm
Oil Capacity	0.6 L
Fuel System	Carburetor
Ignition System	Solid-state
Fuel Tank Capacity	1.5 gal