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Then, inject some after-run oil into the engine, and
rotate the engine with an electric starter or the
recoil starter for 4 to 5 seconds to distribute the oil
to all the working parts.
Finally, when cleaning the exterior of the
engine, use methanol. Do not use gasoline
or any petroleum based solvent that might
damage the silicone fuel tubing.
Note:
Do not inject a petroleum based after-run oil into
the carburetor as this may cause the O-rings
inside the carburetor to deteriorate. These
procedures will reduce the risks of starting
difficulties or corrosion after a period of storage.
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The minute particles of foreign matter, that are present
in any fuel may, by accumulating and partially
obstructing fuel flow, cause engine performance to
become erratic and unreliable.
O.S. 'Super-Filters' (large and small) are available, as
optional extras, to deal with this problem.
One of these filters installed to the pickup tube inside
your refueling container, will prevent the entry of
foreign material into the fuel tank. It is also
recommended that a good in-line filter be installed
between the tank and carburetor.
Dirt and dust may lodge in marked places.
CHECKING THE ENGINE
If the engine suffers a loss of performance after a
long period of running it may be due to the wearing of
parts. It is suggested that the worn parts be replaced
when the following symptoms are detected.
Engine sound changes and easily overheats.
Power has dropped considerably.
Idle is unstable and/or engine tends to stop
at idle.
In most cases, ball bearings, cylinder & piston assembly,
connecting rod and/or crankcase have become worn
out or abnormal. Check the parts carefully and replace
them if necessary.