9. Reinstall carburetor cover panel securing
with hardware removed in step 1.
Spark Plugs
Electrical Shock can cause injury.
Do not touch wires while engine
is running.
Clean out spark plug recess. Remove plug and
replace.
1. Check gap using wire feeler gauge. Adjust
gap, see specifi cation table for adjustment.
2. Install plug into cylinder head.
3. Torque plug to 20 ft. lb. (27 N·m).
Air Cleaner
NOTE: Running engine with cover positioned
for cold weather operation in normal
conditions can damage engine.
NOTE: Operating engine with loose or
damaged air cleaner components
could cause premature wear and
failure. Replace all bent or damaged
components.
NOTE: Paper element cannot be blown out
with compressed air.
Quad-Clean
™
Move bails on air cleaner cover down; remove
latches from under tabs on base; remove cover.
Turn air cleaner cover (counterclockwise) to
release tabs inside cover from base; remove
cover.
Precleaner:
1. Remove precleaner from paper element.
2. Replace or wash precleaner in warm water
with detergent. Rinse and allow to air dry.
3. Lightly oil precleaner with new engine oil;
squeeze out excess oil.
4. Reinstall precleaner over paper element.
Paper Element:
1. Separate precleaner from element; service
precleaner and replace paper element.
2. Install new paper element on base; install
precleaner over paper element.
Position air cleaner cover for normal operation
(sun decal out) or cold weather operation
(snowfl ake decal out).
Place latches under tabs on base; lift up bails to
secure cover.
Turn air cleaner cover (clockwise) to secure
tabs inside cover in base.
17 590 28 Rev. A
CAUTION
or
or
KohlerEngines.com
Low-Profi le
1. Remove screw and air cleaner cover.
2. Remove foam element from base.
3. Wash foam element in warm water with
detergent. Rinse and allow to air dry.
4. Lightly oil foam element with new engine oil;
squeeze out excess oil.
5. Reinstall foam element into base.
6. Reinstall cover and secure with screw.
Oil Bath
Some engines are equipped with an oil bath
air cleaner. Follow maintenance and oil change
information specifi ed in this section and in
Maintenance Schedule.
Move bails on air cleaner cover down; remove
latches from under tabs on base; remove cover.
1. Remove foam fi lter cover from oil reservoir
cup. Remove foam fi lter support plate and
foam fi lter or foam elements.
2. CH270 engines: Replace or wash foam fi lter
in warm water with detergent. Rinse and
allow to air dry.
CH395/CH440 engines: Replace or wash
foam elements in warm water with detergent.
Rinse and allow to air dry.
3. Lightly oil foam fi lter or foam elements with
new engine oil; squeeze out excess oil.
4. Remove foam fi lter support plate and oil
retainer ring from oil reservoir cup.
5. Remove oil reservoir cup from base. Empty
oil from cup and wash cup in warm water
with detergent. Rinse and dry cup.
6. Make sure O-ring is in place on air cleaner
base. Set oil reservoir cup on base.
7. Fill oil reservoir cup up to oil level mark with
same grade of oil as in crankcase. See Oil
Recommendations.
8. Reinstall oil retainer ring and foam fi lter
support plate in oil reservoir cup.
EN
9