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Troubleshooting
When troubles occur, be sure to check the simple causes which, at first, may seem too obvious to be considered.
For example, a starting problem could be caused by an empty fuel tank. Some common causes of engine troubles
are listed in the table below.
Do not attempt to service or replace major engine components, or any items that require special timing or
adjustment procedures. Have this work done by a Kohler Engine Service Center.
Problem
No
Fuel
Will Not Start
Hard Starting
Stops Suddenly
Lacks Power
Operates Erratically
Knocks or Pings
Skips or Misfires
Backfires
Storage
If the engine will be out of service for two months or
more, use the following storage procedure:
1. Clean the exterior surfaces of the engine.
2. Change the oil while the engine is still warm from
operation. Refer to Change Oil.
3. The fuel system must be completely emptied,
or the gasoline must be treated with a stabilizer
to prevent deterioration. If you choose to
use a stabilizer, follow the manufacturers
recommendations, and add the correct amount
for the capacity of the fuel system. Fill the fuel
tank with clean, fresh gasoline. Run the engine
for 2-3 minutes to get stabilized fuel into the
carburetor.
To empty the system, run the engine until the
tank and system are empty.
4. Remove the spark plug. Add one tablespoon of
engine oil into the spark plug hole. Install the
plug, but do not connect the plug lead. Crank the
engine two or three revolutions.
5. Remove the spark plug. Cover the spark plug
hole with your thumb, and turn the engine over
until the piston is at the top of its stroke. (Pressure
against the thumb is greatest.) Reinstall the plug,
but do not connect the plug lead.
6. Store the engine in a clean, dry place.
1
Improper
Electrical Outlet,
Fuel
Extension Cord,
or Starter Faulty
Possible Cause
Incorrect
Engine
Faulty
Oil Level
Overloaded
Spark
Plug
Transport
1. Turn the fuel valve to the OFF position.
2. Tighten the fuel cap.
3. Read and follow the transport guidelines provided
by equipment manufacturer.
Major Repair
Major repair information is available in Kohler Engine
Service Manuals. This type of repair generally requires
the services of a trained mechanic and the use of
special tools and equipment. Kohler Engine Service
Centers have the facilities, training, and genuine Kohler
replacement parts necessary to perform this service.
For the nearest sales and service location:
• Visit our Web site: www.KohlerEngines.com
• Call 1-800-544-2444 (U.S. and Canada)
• Look in your local telephone directory under
Engines-Gasoline
Parts Ordering
The engine model, specification, and serial numbers are
required when ordering replacement parts from your
Kohler Engine Service Center. These numbers are found
on the identification plate which is affixed to the engine
shrouding. Include letter suffixes if there are any. See
Serial Data Label on Page 4.
Always insist on genuine Kohler parts. All genuine
Kohler parts meet strict standards for fit, reliability, and
performance.
Plug Lead
Missing
Disconnected
Stop/Run
Key
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