24
CARE AND MAINTENANCE
Engine maintenance is very important for good
running next time. Carry out the followings.
As previously observed, foreign matter in
the fuel can cause problems. Therefore:
rinse out the fuel tank with methanol or fuel
before installing it.
Install a fuel filter to the fuel delivery tube
between tank and carburetor.
Install a fuel filter to the outlet of your
squeeze bottle, or to the pump inlet if you
use a manual or electric pump. *
do not leave your fuel container open
needlessly.
O.S. ' Super-Filter ' (L) is available, as op-
tional extra,to deal with this problem. To fit
this filterto the outlet tube inside your refuel-
ling container, will prevent the entry of for-
eign material into the fuel tank.
Do not forget to clean the filters regularly to
remove dirt and lint that accumulate on the
filter screens. Also, clean the carburetor
itself occasionally.
1.
2.
At the end of each operating session, drain
out any fuel that may remain in the fuel tank.
Afterwards, energize the glowplug and try to
restart the engine, to burn off any fuel that
may remain inside the engine. Repeat this
procedure until the engine fails to fire. Leav-
ing fuel residues within the engine can result
in difficult starting after a period of storage. It
may also cause corrosion. To reduce such
risks, it is helpful to inject some corrosion in-
hibiting oil into the engine's air intake. Rotate
the engine many times to distribute the oil to
all the working parts.
3.
25
Drain the water remaining in the water cool-
ing head, and wash out with methanol, then
inject corrosion-inhibiting or moisture-dis-
placing oil.
When cleaning the exterior of the engine,
use methanol or kerosene. Do not use ga-
soline or any solvent that might damage the
silicone fuel tubing or any plastic parts of the
boat hull.
When the engine is not in use remove the
glowplug and rinse out the interior with kero-
sene (not gasoline), by rotating the crank-
shaft. Shake out residue, then inject light
machine-oil through the plug hole again ro-
tating the shaft to distribute the protective oil
to all working parts.
4.
5.
6.
In the event of water having entered the cy-
linder, crankcase, etc., refer to the proce-
dures recommended in the footnote to
"running-in" section.
7.
8.
After long use, the engine will not develop the
standard performance due to wear of parts. It
is suggested to replace the parts, such as ball
bearings, connecting rod, cylinder & piston
assembly and crankcase, as necessary after
checking when the following symptoms are
found.
CHECKING OF THE ENGINE
Idling gets unstable and/or the engine stops
at idling.
Engine sound changes and the engine tends
to overheat.
Power drops extremely.
Avoid unnecessary disassembly of your en-
gine.
