---
title: "Rotax MAX Jetting - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
description: "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 - 12"
---

# Rotax MAX Jetting — United Kingdom
> Carburetor Mainjet Setup

![Rotax MAX Jetting App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/dd/89/ef/dd89efb2-31ba-349f-c7a6-05480f259829/AppIcon-0-0-1x_U007epad-0-1-0-85-220.png/400x400bb.png)

**Developer:** [BRP-Rotax GmbH & Co](https://apptail.io/developer/brp-rotax-gmbh-co-yTZ) (Germany)
**Category:** Sports
**Rating:** 1.9/5 (15 ratings)
**Price:** Free
**Bundle ID:** com.rotax-kart.carburetor
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 2.1.4 (released 2026-06-29)
**Original Release:** 2016-09-17

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id1152315347)
**AppTail Page:** [https://apptail.io/app/rotax-max-jetting-hHvd/united-kingdom](https://apptail.io/app/rotax-max-jetting-hHvd/united-kingdom)

## Rotax MAX Jetting Description
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.

## Rotax MAX Jetting Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/ea/cd/49/eacd495e-48a5-8e32-10e7-7efdbdc18831/87524e5c-16a7-4c88-a71e-a7a04a99402c_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-10-05_at_15.48.23.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/95/3d/d6/953dd636-ba34-9591-787d-0d6721808928/753e92bf-4430-4dbc-883d-52199a314007_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-10-05_at_15.48.06.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/79/c4/b9/79c4b909-8ab6-ea8a-a9da-134a7a5d519a/0a5ff9d7-8b48-4d7f-a903-dc1c62e1c472_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-10-05_at_15.47.56.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/9d/d8/bd/9dd8bd24-30e2-ee1f-e584-7fb4795ee5a0/92da0465-6f04-4610-8568-1a2c9a0d3987_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-10-05_at_15.48.55.png/1242x2688.png)

## Rotax MAX Jetting Rating Breakdown in United Kingdom
- 5 stars: 2 (13%)
- 4 stars: 1 (7%)
- 3 stars: 1 (7%)
- 2 stars: 1 (7%)
- 1 stars: 10 (67%)

## Rotax MAX Jetting Reviews in United Kingdom

### **--- "What an app"
This is a fantastic app

But I have got one problem I keep 4 stroking and piling up at start of races. I’ve asked around the paddock and I’ve said I se the app (they told me I was to Rich)

So what I found out after a long expensive day of four stroking I was to Rich so what ever you do the best part of the app don’t press calculate
-- sthjjjjj, 2023-01-09

### *---- "Whoops"
All well and good until you press calculate and nothing !!!!!

Yet again a developer ‘improves ‘ without testing.
-- Essexfun4two, 2020-10-08

[View all Rotax MAX Jetting reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## Rotax MAX Jetting Discovered Keywords
- rotax max jetting


## Rotax MAX Jetting Available In
- [United Kingdom](https://apptail.io/app/rotax-max-jetting-hHvd/united-kingdom)
- [France](https://apptail.io/app/rotax-max-jetting-hHvd/france)
- [Australia](https://apptail.io/app/rotax-max-jetting-hHvd/australia)
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---

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