13
7. Reinstall the paper element, precleaner, element
cover, element cover wing nut and air cleaner
cover. Secure cover with the cover retaining knob.
8. When element replacement is necessary, order
genuine Kohler Parts.
6. Install the new inner element, Kohler Part No.
25 083 04-S followed by the outer element, Kohler
Part No. 25 083 01-S. Slide each fully into place in
the air cleaner housing.
7. Reinstall the end cap so the dust ejector valve is
down and secure with the two retaining clips. See
Figure 15.
Heavy-Duty Air Cleaner
To Service
Every 250 hours of operation (more often under
extremely dusty or dirty conditions), replace the paper
element and check inner element. Follow these steps.
1. Unhook the two retaining clips and remove the
end cap from the air cleaner housing.
2. Pull the air cleaner element out of the housing.
See Figure 14.
Figure 14. Removing Elements.
3. After the main element is removed, check the
condition of the inner element. It should be
replaced whenever it appears dirty, typically every
other time the main element is replaced. Clean the
area around the base of the inner element before
removing it, so dirt does not get into the engine.
4. Do not wash the paper element and inner
element or use pressurized air, this will damage
the elements. Replace dirty, bent or damaged
elements with new genuine Kohler elements as
required. Handle new elements carefully; do not
use if the sealing surfaces are bent or damaged.
5. Check all parts for wear, cracks, or damage.
Replace any damaged components.
Main
Element
Inner
Element
Figure 15. Heavy-Duty Air Cleaner Assembly.
Clean Air Intake/Cooling Areas
To ensure proper cooling, make sure the grass screen,
cooling fins, and other external surfaces of the engine
are kept clean at all times.
Every 100 hours of operation (more often under
extremely dusty, dirty conditions), remove the blower
housing* and other cooling shrouds. Clean the cooling
fins and external surfaces as necessary. Make sure the
cooling shrouds are reinstalled.
*Cleanout kits 25 755 20-S (black) or 25 755 21-S
(gold) allow inspection and cleanout of the cooling fins,
without removing the blower housing.
NOTE: Operating the engine with a blocked grass
screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, will cause engine
damage due to overheating.
Ignition System
Carbureted Engines - Use an electronic Capacitive
Discharge (CD) ignition system. Other than periodically
checking/replacing the spark plugs, no maintenance,
timing, or adjustments are necessary or possible with
this system.
EFI Engines - Incorporate a computer-controlled
battery ignition system with individual coils. Other than
periodically checking/replacing the spark plugs, no
maintenance, timing, or adjustments are necessary or
possible with this system.
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