Traxxas TRX 2.5R, Руководство пользователя

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TRX 2.5R • 9
TERMS TO KNOW
an igniter. EZ-Start equipped engines do not
require this separate tool.
Header - The aluminum tube that connects
the exhaust system to the engine exhaust
port. The length and diameter of the header
must be carefully selected to extract the
most power from the engine.
High-speed needle (HSN) - Adjusts the
carburetors fuel/air mixture at high RPM.
Idle speed - The speed (RPM) the engine
runs at when the transmitter’s throttle
trigger is at neutral.
Idle speed screw (ISS) - Located on the
carburetor body. This screw adjusts the idle
RPM of the engine.
Lean - A running condition where the
engine is not getting enough fuel (for the
available air). Symptoms include engine
overheating, or the engine runs for a short
time and then stalls, particularly at high
speed. This is a dangerous condition that
should be corrected immediately or it can
ruin your engine.
Leaning the mixture - Turning either the
high speed and/or low-speed needle(s)
clockwise to decrease the amount of fuel
the engine receives.
Low-speed needle (LSN) - Needle valve that
controls the low-speed fuel mixture.
Needle valve - Valve consisting of a tapered
needle that closes against a corresponding
seat to regulate fuel flow.
Nitro - Abbreviation for nitromethane,
a component of model engine fuel that
improves fuel combustion and power
output. Nitro also refers to a class of
R/C powered by model engines instead
of electric.
Nitro content - The amount of nitromethane
used in the fuel. Usually measured as a
percentage of the total fuel volume. Traxxas
engines are optimized to use 10-20% nitro.
30% nitro may be used for racing.
Nitromethane - Nitromethane is a component
in the fuel that increases power from the
combustion process up to a point. Engines
are generally optimized to use a range of
nitro content for the best power.
O-ring - Rubber “O”-shaped ring used as a
sealing gasket.
Pipe - Abbreviation for the tuned exhaust pipe
on a nitro engine. See “Tuned Pipe”.
Piston - The piston is the internal engine part
that is attached to the upper end of the
connecting rod and moves up and down in
the cylinder sleeve. The precise fit between
the piston and the sleeve creates a seal that
allows engine to have the required
compression for combustion.