Jetting for KTM 2T Dirt Bikes

This app provides, using temperature, altitude, humidity, atmospheric pressure and oil-mix ratio, a recommendation about the jetting configuration to use for KTM 2-strokes MX and enduro bikes (SX, SXS, EXC, XC and MXC models), from 2005 up to the 2027 minicycles.

Every recommendation is built from the carburetor tuning tables that KTM publishes in the official owner's manual for each model and model year, so you get the factory starting point for your conditions instead of a rule of thumb from a forum.

In order to get the weather values, the application can use the location service (GPS or WiFi) to obtain the position and altitude, and the network connection to get the temperature, pressure and humidity from the nearest weather station. Nevertheless, the application can run without GPS, WiFi and internet connection, in this case, the user has to give the weather data.

The application is made up of four tabs that are described next:

Results: in this tab, the recommended main jet, needle type and clip position, pilot jet and air screw position are shown (screw position is expressed in turns from fully tightened). These data are calculated depending on the weather conditions and the engine configuration introduced in the next tabs. Under the recommended main jet, the calculated real value with decimals is shown. The air density and density altitude are shown too. In addition, this tab lets you do a fine tuning adjustment to adapt to a concrete engine (you know that each engine has its own personality).

Weather: you can set the values for current temperature, pressure, altitude and humidity. The values of this screen can be manually set or can be loaded by the application reading the data from the nearest weather station (from the GPS tab).

Engine: you can set in this screen the information about the engine, that is, the model year, model and carburetor, and the oil mix ratio that you're using.

GPS: this tab allows you to use the location service (using GPS or WiFi) to get the current position and altitude, and connect to an external service to get the weather conditions of the nearest weather station (temperature, pressure and humidity).

The app lets you use different measure units: ºC and ºF for temperatures, meters and feet for altitude, mb, hPa, mmHg and inHg for pressures, and kg/m³, lb/ft³ and lb/gal (US) for air density.

No ads, no tracking, no account. Every calculation runs on your device, so the app works at the track with no coverage: you only need a connection if you want to pull the weather from the nearest station.

Valid for the following models from 2005 to 2027:

50 SX: 2005-2027.

50 SX Factory Edition: 2021-2026.

50 SX Mini: 2017-2023.

65 SX: 2010-2027.

85 SX: 2005-2027.

105 SX: 2006-2012.

125 SX: 2005-2022.

125 SXS: 2005-2007.

125 EXC: 2005-2016.

125 XC: 2017-2018.

144 SX: 2007-2008.

150 SX: 2009-2022.

150 XC: 2017-2019.

150 XC USA: 2010, 2012-2014.

200 EXC: 2005-2016.

200 XC: 2005-2012.

250 SX: 2005-2022.

250 SXS: 2005-2007.

250 XC: 2007-2009, 2011-2019.

250 EXC: 2005-2018.

300 EXC: 2005-2018.

300 XC: 2009-2018.

300 MXC: 2005.

Please note that the application is valid only for engines that use a carburetor. Not valid for fuel injection engines.