Rotax MAX Jetting

Calculation tool for the recommended jetting for Rotax MAX evo engines

BRP-Rotax GmbH & Co KG · com.carburetorjetting.calculator

Not rated yet 10K+ downloads v2.2.4 42.7 MB Android 12L+ PEGI 3 · Everyone

Download APK 42.7 MB All versions

Signature matches the Google Play version Details

Watch the Rotax MAX Jetting trailer on YouTube

At a glance

Latest version: v2.2.4 (1782194971)
Updated: Jun 29, 2026 (3 months ago)
APK size: 42.7 MB
Requires: Android 12L+ (API 32)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Sports (app)
Listed since: Apr 7, 2021 (at least)
Permissions: 8 (2 sensitive)
Website: rotax-kart.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Rotax MAX Jetting is an app by BRP-Rotax GmbH & Co KG in the Sports category, listed since at least April 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 2.1.6, the minimum Android version rose from 6.0 to 12L. It asks for 8 permissions, 2 of them sensitive: precise location and approximate location. It asks for the same permissions as version 2.2.3.

What's new in v2.2.4

Improvements and bug fixes

Description

From the listing uploaded by “appupdater”.

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".

Version history

4 versions are listed, going back to v2.1.6. Since v2.2.2 it requires Android 12L+.

v2.2.4 LATEST Jun 29, 2026 42.7 MB TRUSTED v2.2.3 Apr 3, 2026 42.6 MB TRUSTED v2.2.2 Feb 17, 2026 42.6 MB TRUSTED v2.1.6 Apr 10, 2024 6.4 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jun 29, 2026.
Certificate issued to “Carburetor” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Jun 29, 2026
Validated against Google Play Jun 29, 2026
Signed byO=Carburetor
Signing certificate (SHA-1)CD:DB:BB:D0:35:E1:E7:6E:4F:60:89:C4:E1:59:B0:CB:9A:17:E7:52
File MD529e2c71063c4479ad5c42ab920a5e457
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

Rotax MAX Jetting requests 8 permissions, 2 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.carburetorjetting.calculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Use biometric hardware android.permission.USE_BIOMETRIC
Use fingerprint hardware android.permission.USE_FINGERPRINT
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location

Rotax MAX Jetting APK: questions and answers

Is there a version of Rotax MAX Jetting for older Android phones?

The current version needs Android 12L or later. Version 2.1.6 is the newest listed build that installs on Android 6.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.1.6 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Rotax MAX Jetting APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 29e2c71063c4479ad5c42ab920a5e457.