11
139-150 Hour Maintenance
Combustion chamber should be decar-
bonized, and the valve clearance should
be adjusted. It is highly recommended
that this is done by a Shindaiwa-trained
service technician.
Replace the spark plug annually: Use
only NGK CMR5H or equivalent resis-
tor type spark plug of the correct heat
range. Set spark plug electrode gap to
0.6 - 0.7 mm.
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150 hours thereafter:
Long Term Storage
Remove the spark plug and pour about
1/4 ounce of 2-cycle mixing oil into the
cylinder through the spark plug hole.
Slowly pull the recoil starter 2 or 3
times so oil will evenly coat the interior
of the engine. Reinstall the spark plug.
Before storing the unit, repair or replace
any worn or damaged parts.
Remove the air cleaner element from the
carburetor and clean it thoroughly with
soap and water. Let dry and reassemble the
element.
Store the unit in a clean, dust-free area.
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Ŷ
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Whenever the unit will not be used for 30
days or longer, use the following proce-
dures to prepare it for storage:
Clean external parts thoroughly and apply
a light coating of oil to all metal surfaces.
Drain all the fuel from the fuel tank.
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Remove the remaining fuel from the fuel
lines and carburetor.
Prime the primer bulb until no more
fuel is passing through.
Start and run the engine until stops
running.
Repeat steps 1 and 2 until the engine will no
longer start.
1.
2.
3.
CAUTION!
Gasoline stored in the carburetor for
extended periods can cause hard start-
ing and could also lead to increased
service and maintenance cost.
WARNING!
Never operate the unit with
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arrester! Operating with a missing or
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and could also damage your hearing.
IMPORTANT!
If you note excessive carbon buildup, con-
sult with an authorized Shindaiwa servicing
dealer.
With a 3 mm hex wrench remove the
4 engine cover screws and the engine
cover. See Figure 19.
With a 4 mm hex wrench remove the
3 muffler bolts and the muffler. See
Figure 19.
With a small flat bladed screwdriver
remove the 2 screws holding the spark
arrester screen and cover to the muf-
fler. See Figure 19.
Remove the screen and clean it with a
stiff bristle brush.
1.
2.
3.
4.
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IMPORTANT!
All stored fuels should be stabilized with a
fuel stabilizer such as STA-BIL™ , if
oil with fuel stabilizer is not used.
Figure 19
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Bolts
Spark Arrester
Screen
Cover
Cover
Screws
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Gasket
Engine Cover
Screws
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Spark Arrester
Cover
Inspect the cylinder exhaust port for
any carbon buildup.
5.
Reassemble the spark arrester, muffler
and engine cover in the reverse order of
disassembly.
6.
If the engine becomes sluggish and low
on power, check and clean the spark
arrester screen.
