Operator’s Manual 125 MAX DD2 evo
Page 51/70
Edition 09/2016
4.1.
Carburetor calibration
The standard carburetor calibration is set for an ambient temperature of 25 °C / 77 °F and 400 m /
1310 ft above sea level. For an operation at different temperatures and altitudes, the main jet of the
carburetor has to be changed to optimize engine performance.
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Note:
For engine operation at an ambient temperature below 10 °C / 50 °F, make sure not
to demand full power before the coolant temperature has reached 45 °C / 113 °F.
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Note:
The warranty by BRP-Rotax will no longer apply, if the carburetor calibration is
carried out improperly and causes engine damage.
The following application for smartphones shows the individual setting of your ROTAX 125 Max
engine:
The Rotax Max Jetting Guide is an app for Android™ and iOS devices, designed to assist users
with setting up the recommended main jet based on the ambient conditions and the type of engine.
The perfect set-up can be calculated in two ways, either automatically - which requires a GPS
signal and an internet connection, or manually - which requires certain knowledge about altitude
and weather conditions.
Automatical set-up:
1.
Click on the white button located at the top of the screen saying “USE
GPS POSITION FOR WEATHER DATA”. After a short time the app will
automatically provide all the necessary information regarding weather
and geographical position.
2.
As a second step, the engine type of the kart needs
to be selected. Therefore, the button underneath the
weather data needs to be clicked. The app will
automatically show all potential Max evo engines,
from which one can be selected by clicking on a
certain engine type.
3.
After all the necessary information has been provided and selected,
you only need to click the circular red button saying “CALCULATE” at
the bottom of the screen.
