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Scraping Method
If washing does not remove all debris from under
deck, tip mower and scrape it clean.
1. Pull wire off spark plug.
2. Drain gasoline from fuel tank: refer to
DRAINING GASOLINE section.
3. Tip mower on its right side.
4. Remove dirt and grass clippings with a
hardwood scraper. Avoid burrs and sharp edges.
5. Turn mower upright.
6. Refill gas tank.
7. Reconnect spark plug wire.
Belt Cover (self-propelled model only)
Keep area under belt cover free of debris.
1. Remove bolts securing belt cover (Fig. 26) to
mower housing. Lift off cover and brush out all
debris from belt area. Reinstall belt cover.
Fuel Filter
Replacing the Fuel Filter
Replace the fuel filter after every 100 operating hours
or yearly, whichever occurs first. The best time to
replace the fuel filter (Fig. 31) is when the fuel tank is
empty. Never install a dirty filter if it is removed from
the fuel line.
1. Squeeze the ends of the hose clamps together
and slide them away from the filter (Fig. 31).
2. Remove the filter from the fuel lines.
3. Install a new filter and move the hose clamps
close to the filter.
Storage
1. For long term storage, either drain gasoline from
fuel tank or add a fuel stabilizer to the gasoline.
To drain gasoline, refer to DRAINING
GASOLINE section. After fuel is drained, start
engine and let it idle until all fuel is consumed
and engine stops. Repeat the starting procedure
two more times to ensure all gas is removed
from the engine. If gasoline is not drained,
gum-like varnish deposits will form and cause
poor engine operation, even starting problems.
Note: If engine is operating on oxygenated or
reformulated gasoline (gasoline
blended with an alcohol or an ether),
remove all fuel from tank and run
engine until it stops from lack of fuel
before storing.
Fuel can be left in gas tank only if a fuel
stabilizer is added to gasoline and run through
engine before storing. Exmark does not
recommend stabilizers with an alcohol base,
such as ethanol, methanol or isopropyl. Use fuel
additive in recommended quantities as specified
on container.
Under normal conditions, fuel additives remain
effective in fuel for 6–8 months.
2. Drain oil: refer to CHANGING CRANKCASE
OIL section. After oil is drained, do not fill
crankcase with oil until the following steps
(3–10) are completed.
3. Remove spark plug and pour 2 tablespoons of
SAE 30 oil into hole in cylinder. Pull starter rope
slowly to coat inside of cylinder. Install spark
plug and tighten to 14 ft–lb (19 Nm). DO NOT
REINSTALL WIRE ON SPARK PLUG.
4. Clean mower housing: refer to CLEANING
MOWER section.
5. Clean dirt and chaff from cylinder, cylinder head
fins, and blower housing. Also remove grass
clippings, dirt, and grime from external parts of
the engine, shrouding, and top of mower
housing.