Jetting for Kawasaki KX

Spot-on jetting for your KX two-stroke, weather from the nearest station, and a logbook that learns how your bike runs. 9 models, from 1994 to 2027.

Jetting for Kawasaki KX works out the carburettor settings for the conditions of the day: main jet, needle, clip position, pilot jet and air screw.

Tell it the bike and the weather, and it gives you the jetting. If you would rather not type the weather in, the app brings it from the nearest weather station.

WHAT IT DOES • Full jetting: main jet with the exact calculated value below it, needle type, clip position, pilot jet and air screw turns from fully closed. • Weather from the nearest station in one tap: temperature, pressure and humidity, plus altitude from the GPS. • Logbook: save each ride, then note what you actually fitted and how it went, rated per circuit -low, mid and high-, because jetting can run rich down low and lean up top at the same time. Export to CSV, or share a copy to move it to another phone. • Fine tuning: shift the recommendation to suit your engine, between -10 and +10. Every engine has its own character, and wear, the exhaust or the filter change it. • Air density and density altitude, the intermediate result everything comes from and a quick way to compare one day with another.

UNITS • Temperature: °C and °F • Pressure: mb, hPa, mmHg and inHg • Altitude: m and ft • Air density: kg/m³, lb/ft³ and lb/gal (US)

No ads, no tracking, no account. It works with no signal: enter the weather by hand and the calculation is the same.

MODELS KX60 (1994-2004), KX65 (2000-2027), KX80 (1994-2001), KX85 (2001-2027), KX100 (1995-2021), KX112 (2022-2027), KX125 (1994-2008), KX250 (1994-2008), KX500 (1994-2004)

The carburettor is not a choice: the year and model determine it, according to Kawasaki's manual for that year. Valid for carburetted engines only.

The values are a starting reference. Air temperature and density change through the day, and so does the right jetting.