O.S. Engines FS-26S-CX - Manual (Page 12)

TOOLS, ACCESSORIES, etc.
The following items are necessary for operating
the engine.
Model engine fuel is poisonous. Do not
allow it to come into contact with the
eyes or mouth. Always store it in a
clearly marked container and out of the
reach of children.
Model engine fuel is also highly
flammable. Keep it away from open flame,
excessive heat, sources of sparks, or
anything else which might ignite it.
Reminder!
BATTERY INTEGRATED GLOWPLUG HEATER
Commercialy available handy
glowplug heater in which the
glowplug battery and battery
leads are integrated.
FUEL
Use only top quality methanol-based model engine
fuel.For consistent performance and long engine
life, it is advisable to use fuel containing AT LEAST
18% lubricant. This engine is designed to run on
both low and high nitromethane content fuels,i.e.
from mild mixtures containing small percentage of
nitromethane, up to high-speed racing fuels
containing 40% nitromethane. Generally, power
output is increased-up to a certain point-as the
nitromethane content of the fuel is increased. As a
starting point, we recommend a fuel containing 10-
20% nitromethane, changing to a fuel containing
more nitro only if necessary. When the nitro content
of the fuel is increased or the brand of fuel is
changed, it is advisable to initially run the engine
with a richer needle-valve setting, so that the
optimum setting for the new fuel may be rechecked
rechecked as described in the RUNNING-IN
paragraphs. When engines are run at very high
speeds and on high-nitro fuels, glowplug elements
will not last as long.
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