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When the best balance of mixture adjustments has
been determined and, especially as the engine be-
comes fully run-in, it will probably be found that the
idling speed has increased.
Readjust the throttle opening by means of the trim
lever on the transmitter, so that the lowest idling
speed, without risk of stalling the engine, may be
obtained.
CARE AND MAINTENANCE
To ensure that you obtain long life and peak
performance from your engine, observe the following.
1
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 carburettor.
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-Filters' (large and small) are available,
as optional extras,to deal with this problem.
One of these filters, fitted to the outlet tube inside
your refuelling container, will prevent the entry of
foreign material into the fuel tank.
2
Do not forget to clean the filters regularly to
remove dirt and lint that accumulate on the filter
screens. Also, clean the carburettor itself
occasionally.
3
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 re-
start the engine, to burn off any fuel that may re-
main inside the engine. Repeat this procedure un-
til the engine fails to fire. Leaving 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 inhibiting oil into the engine's air intake.
Rotate the engine many times to distribute the oil
to all the working parts.
15
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