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Figure 22. Ejector Area.
6. Install the new inner element, Kohler Part No.
25 083 04-S followed by the paper element,
Kohler Part No. 25 083 01-S. Slide each fully into
place in the air cleaner housing.
7. Reinstall the end caps and secure with the
retaining clips. See Figure 19.
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.
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
An electronic Capacitive Discharge (CD) ignition
system is used. Other than periodically checking/
replacing the spark plugs, no maintenance, timing, or
adjustments are necessary or possible with this
system.
Check Spark Plugs
Every 200 hours of operation, remove the spark plugs,
check condition, and reset the gap. Replace with new
plugs every 600 hours, or as necessary. The standard
spark plug is a Champion
®
XC10YC (Kohler Part No.
62 132 04-S). Equivalent alternate brand plugs can
also be used.
1. Before removing the spark plug, clean the area
around the base of the plug to keep dirt and
debris out of the engine.
2. Remove the plug and check its condition. Replace
the plug if worn or reuse is questionable.
NOTE: Do not clean the spark plug in a machine
using abrasive grit. Some grit could remain
in the spark plug and enter the engine
causing extensive wear and damage.
3. Check the gap using a wire feeler gauge. Adjust
the gap to 0.76 mm (0.030 in.) by carefully
bending the ground electrode. See Figure 23.
Figure 21. Removing Elements.
3. After the paper 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 or
every 600 hours. 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 compressed air, this will damage
the elements. Replace dirty, bent or damaged
elements with new genuine Kohler elements as
required. Handle the new elements carefully; do
not use if the sealing surfaces are bent or
damaged.
5. Check all parts for wear, cracks, or damage, and
make sure ejector area is clean. See Figure 22.
Replace any damaged components.
Figure 23. Servicing Spark Plug.
Ejector
Area
Paper Element
Inner Element
0.76 mm
(0.030 in.) Gap
Wire Gauge
Ground
Electrode
Spark Plug