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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 following table.
Do not attempt to service or replace major engine components, or any items that require special timing or
adjustment procedures. Have your Kohler Engine Service Dealer do this work.
Possible Cause No Improper Dirt In Dirty Incorrect Engine Dirty Air Faulty
Problem Fuel Fuel Fuel Line/System Grass Screen Oil Level Overloaded Cleaner Spark Plug
Will Not Start •• • • • • •
Hard Starting •• •••
Stops Suddenly •••••••
Lacks Power •• •••••
Operates Erratically •• • •••
Knocks or Pings ••••
Skips or Misfires •• • ••
Backfires •• •••
Overheats •• ••••
High Fuel Consumption •••
Storage
If the engine will be out of service for 30 days or more,
use the following storage procedure:
1. Clean the exterior surfaces of the engine. Avoid
spraying water at the wiring harness or any of
the electrical components.
2. Change the oil and filter while the engine is still
warm from operation. Refer to Change Oil and
Change Oil Filter on pages 9 and 10.
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 manufacturer’s
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 rest of
the system. Close fuel shut-off valve when unit is
being stored or transported.
To empty the system, run the engine until the
tank and fuel system are empty.
4. Remove the spark plugs. Add one tablespoon of
engine oil into each spark plug hole. Install the
plugs, but do not connect the plug leads. Crank
the engine two or three revolutions.
5. Store the engine in a clean, dry place.
Parts Ordering
The engine Specification, Model, and Serial Numbers
are required when ordering replacement parts from
your Kohler Engine Service Dealer. These numbers are
found on the identification plate which is affixed to the
engine shrouding. Include letter suffixes if there are
any. Refer to Engine Identification Numbers on page 5.
Always insist on genuine Kohler parts. All genuine Kohler
parts meet strict standards for fit, reliability, and
performance.
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 Dealers
have the facilities, training, and genuine Kohler
replacement parts necessary to perform this service.
For the nearest Sales & Service location:
• visit our website www.kohlerengines.com
• call 1-800-544-2444 (U.S. & Canada)
• look in the local telephone directory under
Engines-Gasoline