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Maintenance Schedule
These required maintenance procedures should be
performed at the frequency stated in the table below.
They should also be included as part of any seasonal
tune-up.
Frequency
Maintenance Required
Check oil level.
Daily or
Fill fuel tank.
Before Starting
Check air intake and cooling
Engine
areas; clean as necessary.¹
Change oil.
Clean cooling areas.
Yearly
Replace spark plug, and set gap.
Replace fuel filter (if equipped).
¹Perform these maintenance procedures more frequently
under extremely dusty, dirty conditions.
Check Oil Level
The importance of checking and maintaining
the proper oil level in the crankcase cannot be
overemphasized. Check oil BEFORE EACH USE as
follows:
1. Make sure the engine is stopped, level, and is cool
so the oil has had time to drain into the sump.
2. Clean the area around and beneath the dipstick
before removing it. This will help keep snow, ice,
and other foreign matter out of the engine. See
Figure 14.
Figure 14. Oil Fill Cap/Dipstick and Oil Fill Tube.
Oil Fill Cap/
Dipstick
Oil Fill
Tube
3. Unscrew and remove the oil fill cap/dipstick; wipe
off oil. Reinsert the dipstick into the oil fill tube
and screw in.
4. Unscrew and remove the oil fill cap/dipstick and
check that oil level is correct. The correct oil level
is between the F and L marks on the dipstick. See
Figure 15.
Oil Fill
Cap
Dipstick
Figure 15. Correct Oil Level.
5. If the level is low, add oil of the proper type (refer
to Oil Type) and to the correct level. Always check
the level before adding more oil.
NOTE: To prevent extensive engine wear or
damage, always maintain the proper oil
level in the crankcase. Never operate the
engine with the oil level above or below
the correct operating range.
6. Reinstall the oil fill cap/dipstick and tighten
securely. See Figure 14.
Oil Disposal
Protect and respect the environment. Dispose of oil
at your local recycling center or municipal collection
center in accordance with local ordinances.
Change Oil
For a new engine, change oil after the first 5 hours of
operation. Thereafter, change oil after every 15 hours of
operation or yearly, which ever comes first.
For an overhauled engine, use Kohler 5W-30 service
class, SJ or higher oil for the first 5 hours of operation.
Change the oil after this initial run-in period. Refill
with service class SJ or higher oil as specified in the Oil
Viscosity Grades Table (Figure 3).
Operating
Range
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