caused by moisture from the alcohol based glow fuel. Castor
oil provides the best protection but many people don't like
the mess it leaves behind after a flight.
as quickly as a few days. Some extreme cases take more time.
are finished flying for the day, run your engine dry by removing
the fuel line at a moderate speed or allow the fuel tank to
run dry. It is best to squirt some MECOA/K&B AFTER RUN
OIL in the carburetor, then flip the propeller about 10 to
20 times. This oil will keep castor based fuels from gumming
and protect internal engine parts from rust and corrosion.
When storing your model between flying sessions, it is best
to wrap your engine in a rag or plastic to prevent dust, dirt
and moisture from entering the engine. The engine should also
be wrapped in a rag at the flying field between flights.
good quality fuel with the formula printed on the label. See