MX Power Tuner

33D-859C0-10-00   -   Blue

This easy plug-in fuel-injection and ignition tuning tool allows to quickly adjust the fuel and ignition maps of your Yamaha.

  • Monitors the data from various sensors on the unit
  • Adjustments can be made for two 3D program maps - the fuel injection volume map and the ignition timing map
  • Three adjustable points at RPM level available (low-, mid- and high-speed)
  • Three adjustable points at throttle opening available (low-, half- and full-throttle)
  • Adjustments on the fuel injection map over 15 steps (-7 to +7)
  • Adjustments on the ignition advance map over 14 steps (-9 to +4)
  • Possible to adjust idle timing - see engine running time and selfdiagnosis function
  • Memory function can save up to 9 customs maps
  • Maps can be created without being connected to the bike
  • Easy plug and play, can be done in your garage or on track
  • For competition usage only (close circuit and private land)


See also our recommendation sheet for baseline settings.

Suitable for 2 great models

  • WR250F


    '15 '16 '17 '18
  • YZ250F


    '14 '15 '16 '17 '18