Engine Tuning - GM-Racing Leopard 90505 Instruction Manual

Engine Tuning

If the engine is runned-in, you can use it to maximum performance. It is important that you carefully on
the eighth overheating, as they cause serious damage and lead to premature wear. Make any changes
to the carburetor screws in the 1-hour increments. " Caution: Take the carburetor settings always only if
the engine to reach operating temperature!
The Idle Setting
The idle setting affects the performance of idle slightly higher. The optimum setting is
the engine for at least 8-10 seconds in idle, then, the car with light outs and clearly
identifiable smoke plume. The best check after when the engine is warmed by it
about 8-10 seconds idle spin. If the idle mixture is adjusted so that the engine is not
running so long, you twist the idle screw clockwise to the idle peed. While the
engine rotates empty, pinch now the fuel line close to the carburetor, the fuel
circulation to interrupt, and listen to the engine speed. If the idle screw is
set properly, can the speed increase only slightly, and then the engine off.
If the speed before standing to remain several hundred revolutions increases,
the idle screw too fat. If the engine is not run high, but simply stand still, is the setting
for lean and fat must be set by the screw an hour. If the idle optimally set, turns the
engine idling probably in a little bit higher. They must then idle counterclockwise adjustments to the
idle speed of the engine to reduce. The engine must start with constant acceleration run without
delays.
The Full Load Setting
After initial spin of the motor must rotate evenly and the typical two-stroke howling with clearly
identifiable smoke plume. If the engine tortures and heavy smoke plume dropouts shows that the
mixture of fat and lean must be set by the full load screw in 1-hour
increments "clockwise until the engine runs quietly. If no smoke
to see is the mix of lean and you need to accumulate by the screw
counter-clockwise twist. Do not by the sound of the engine deceived
about the actual performance. A lean mixture generates a higher
noise, but that does not necessarily mean higher performance,
because the engine close it is to overheat and damage to suffer.
Ideally, you should run the engine so that it is based on the fat side of
the power runs. The result is the best mix of speed and life expectancy
of the engine. Caution: The mixture is too lean and the engine is running hot when he quickly and
with high noise run, then runs hard, no longer shows smoke or the speed to recede. This can be
done by the terrain characteristics, atmospheric conditions or drastic height differences caused. To
permanent damage to the engine to prevent, you must then immediately enrich the mixture by using
the full load screw at least two hours steps "counter-clockwise disguise, and be prepared for further
reprisals made before you continue driving.
16 GM-Racing Leopard 90505 & 90505.RTR
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