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Refer to the operating instructions of the equipment this
engine powers. Because of equipment design or
application, there may be more stringent restrictions
regarding the angle of operation.
NOTE: Do not operate this engine continuously at
angles exceeding 25° in any direction. Engine
damage could result from insufficient
lubrication.
Cooling
NOTE: If debris builds up on the grass screen or other
cooling air intake areas, stop the engine
immediately and clean. Operating the engine
with blocked or dirty air intake and cooling
areas can cause extensive damage due to
overheating.
WARNING: Hot Parts!
Engine components can get extremely hot from
operation. To prevent severe burns, do not touch these
areas while the engine is running, or immediately after it
is turned off. Never operate the engine with heat shields
or guards removed.
Engine Speed
NOTE: Do not tamper with the governor setting to
increase the maximum engine speed.
Overspeed is hazardous and will void the
engine warranty. The maximum allowable high
idle speed for these engines is 3750 RPM, no
load.
• Replace fuel filter
1
(EFI engines).
Daily or Before
Starting Engine
Maintenance RequiredFrequency
• Fill fuel tank.
• Check oil level.
• Check air cleaner for dirty
1
, loose, or damaged parts.
• Check air intake and cooling areas, clean as necessary
1
.
• Service precleaner element
1
.
Every 25 Hours
• Replace air cleaner element
1
.
• Change oil. (More frequently under severe conditions.)
• Remove cooling shrouds and clean cooling areas
1,3
.
• Check oil cooler fins, clean as necessary (if equipped).
• Check spark plug condition and gap.
• Change oil filter.
• Replace fuel filter (carbureted engines).
Annually or
Every 500 Hours
• Have bendix starter drive serviced
2
.
• Have solenoid shift starter disassembled and cleaned
2
.
Every 100 Hours
Every 200 Hours
Every 1500 Hours
Maintenance Instructions
Maintenance, repair, or replacement of the emission control devices and systems, which are being done
at the customers expense, may be performed by any non-road engine repair establishment or individual.
Warranty repairs must be performed by an authorized Kohler service outlet.
WARNING: Accidental Starts!
Disabling engine. Accidental starting can cause severe injury or death. Before working on the engine or
equipment, disable the engine as follows: 1) Disconnect the spark plug lead(s). 2) Disconnect negative (-) battery
cable from battery.
Maintenance Schedule
These required maintenance procedures should be performed at the frequency stated in the table. They should
also be included as part of any seasonal tune-up.
1
Perform these maintenance procedures more frequently under extremely dusty, dirty conditions.
2
Only required for Denso starters. Not necessary on Delco starters. Have a Kohler Engine Service Dealer perform
this service.
3
Cleanout Kits 25 755 20-S (black) or 25 755 21-S (gold) allow cooling areas to be cleaned without removing
shrouds.
• Have crankshaft spline lubricated
2
.
Every 500 Hours
Every 250 Hours
• Replace heavy-duty air cleaner element and check inner element
1
.