Makita EG2250A Manuel D'instructions page 13

NOTICE:
Operating the engine without an air filter, with a damaged
air filter, or with an improperly installed air filter will allow
dirt to enter the engine, causing rapid engine wear. This
type of damage is not covered by the Distributor's Limited
Warranty.
1. Remove the knob, unhook the two air cleaner cover
clips, and then remove the air cleaner cover and the
element.
2. Wash the air cleaner element with a solution of
household detergent and warm water, then rinse
thoroughly, or wash with a nonflammable or high
flashpoint solvent. Then, allow the air cleaner element
to dry thoroughly.
3. Soak the air cleaner element in clean engine oil and
squeeze out the excess oil. If too much oil is left in the
air cleaner element, the engine will smoke during
initial startup.
4. Reinstall the air cleaner element and the cover.
Fuel Sediment Cup Cleaning
The sediment cup prevents any dirt or water that may be
in the fuel tank from entering the carburetor. Be sure to
clean the sediment cup if the engine has not been run for
a long period of time.
1. Turn the fuel valve lever to the "O (OFF)" position.
Remove the sediment cup, O-ring, and filter.
2. Clean the sediment cup and filter with a nonflammable
or high flash point solvent.
3. Reinstall the filter, new O-ring, and sediment cup.
4. Turn the fuel valve lever to the "I (ON)" position and
check for leaks.
Spark Plug Service (Fig. 18 & Fig. 19)
A spark plug wrench (commercially available) is required
to service the spark plug.
Recommended spark plugs: RN9YC (Champion),
BPR5ES (NGK), W16EPR-U (DENSO)
In order for the engine to operate properly, the spark plug
must be properly gapped and free of deposits.
NOTICE:
Using an incorrect spark plug can damage the engine.
Let the engine cool before servicing the spark plug, if the
engine has been running.
1. Remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3. Use a spark plug wrench to remove the spark plug.
4. Visually inspect the spark plug.
Discard it if the insulator is cracked, chipped, or
fouled.
5. Measure the spark plug electrode gap with a wire-type
feeler gauge. If necessary, correct the gap by carefully
bending the side electrode.
The gap should be: 0.7 - 0.8 mm
6. Check that the spark plug sealing washer is in good
condition, and then thread the spark plug in by hand to
prevent cross-threading.
7. After the spark plug is seated, tighten with a spark
plug wrench to compress the washer.
- If installing a new spark plug, tighten 1/2 turn after
the spark plug seats to compress the washer. If
reinstalling a used spark plug, tighten 1/8 to 1/4
turns after the spark plug seats to compress the
washer.
NOTICE:
If the spark plug is loose, it can overheat and damage the
engine.
If the spark plug is over tightened, it can damage the
threads in the cylinder head.
Spark Arrester Maintenance (country
specific) (Fig. 20)
If the generator has been running, the muffler will be very
hot. Allow it to cool before cleaning the spark arrester.
In order to keep the spark arrester functioning as
designed, it must be serviced every 100 hours.
Clean the spark arrester as follows:
1. Loosen the screw by the exhaust port of the muffler
and remove the spark arrester.
2. Use a brush to remove carbon deposits from the spark
arrester screen.
The spark arrester must be free of breaks or tears.
Inspect it and replace it if damaged.
3. Install the spark arrester in the reverse order of
removal.
STORAGE
Storage Preparation
Proper storage preparation is vital to keep the generator
trouble-free and looking good. The following steps will
help to keep rust and corrosion from impairing the
generator's performance and appearance, and will make
the engine easier to start when you use the generator
again.
Cleaning
Wipe down the generator with a moist cloth and let it dry
completely. Touch up any damaged paint and coat other
areas that may rust with a light film of oil.
Fuel
NOTICE:
Fuel formulations may deteriorate and oxidize rapidly,
depending on the region where the equipment is
operated. Fuel deterioration and oxidation can occur in as
little as 30 days and may cause damage to the carburetor
and/or fuel system. Check with your servicing dealer for
local storage recommendations.
Gasoline will oxidize and deteriorate in storage. Old
gasoline will cause hard starting, and it leaves gum
deposits that clog the fuel system. If the gasoline in the
generator deteriorates during storage, the carburetor and
other fuel system components may need to be serviced or
replaced.
The length of time that gasoline can be left in the fuel tank
and carburetor without causing functional problems will
vary with factors such as gasoline blend, your storage
temperatures, and whether the fuel tank is partially or
completely filled. The air in a partially filled fuel tank
promotes fuel deterioration. Very warm storage
temperatures accelerate fuel deterioration. Fuel
deterioration problems may occur within a few months, or
even less if the gasoline was not fresh when you filled the
fuel tank.
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