Rotax MAX Jetting
Carburetor Mainjet Setup
Free · Designed for iPad
The Rotax MAX Jetting App enables the user to calculate the optimal carburetor main jet size for Rotax kart engines of the MAX series:
- 125 Micro MAX evo
- 125 Mini MAX evo
- 125 Junior MAX evo
- 125 Senior MAX evo
- 125 MAX DD2
based on the current ambient conditions
- Temperature
- Altitude
- Air pressure
- Humidity
This can be done either automatically using GPS and a functioning internet connection or manually by entering the ambient parameters.
*Automatically*
Click on Use GPS position for weather data, select the desired engine type from the scroll menu and start the calculation tabbing the Calculate button.
*Manually*
Enter all ambient parameters, select the desired engine type from the scroll menu and start the calculation tabbing the Calculate button.
Important: Since the calculation is based on the "relative air pressure" (air pressure at 0m above sea level), your own barometer must be calibrated to the current altitude before you can actually use the value. Online weather services provide this value by default.
To toggle between Celsius and Fahrenheit, press °C/°F and to choose between meters and feet press m/ft next to the entry of the value.
To start a new calculation, click Reset.
Improvements and bug fixes
The developer, BRP-Rotax GmbH & Co KG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BRP-Rotax GmbH & Co KG
- Size
- 13.1 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and German
- Age Rating
4+
- 4+
- Copyright
- © BRP-Rotax GmbH & Co KG