Click to enlargeWR250R WR250X <br>Bazzaz Z-FI Fuel Controller









Home > Dual Sport > Yamaha WR250X/R Parts > Bazzaz Z-FI Fuel Controller

Our most popular Electronic Fuel Injection Conrollers for the Yamaha WR250R/WR250X is the EJK EFI Controller. The EJK EFI controllers are very popular because they are inexpensive, simple to install, and very easy to use. For the most part, you install the pre-programmed controller, and you're done. They do give you the ability to do additional tuning if you want, but if you're really into tuning, and want something that will let you really fine tune the performance of your bike, then the Bazzaz Z-FI Fuel Controller is just what you're looking for.

Fitment: 2008-2017 Yamaha WR250R / WR250X

Benefits of the Bazzaz Z-FI Fuel Controller:
  • 'Wakes up' performance
  • Crisp and responsive throttle
  • Smooths out throttle transitions
  • HP and torque gains

    How It Works: Power is dependent on how well the air / fuel mixture is ignited in the cylinder. Air / fuel ratio (AFR) is controlled by the engine control unit (ECU). Bazzaz fuel controllers piggy back onto the Engine Control Unit (ECU), intercepting the signal sent to the fuel injectors and then change it. The precise data for these changes is stored in the Z-Fi fuel controller in the form of a fuel map. The Z-Fi comes pre-programmed with an enhanced fuel map for power gains and improved throttle response.

    Who Needs It? Every motorcycle can benefit from fuel tuning. Stock motorcycles may come with a fuel / air mixture that is too lean or too rich in areas, affecting performance. Motorcycles with any modifications (such as exhaust or high-flow filters) must have fuel tuned to accommodate the change in air to the AFR.

    Package Deals:
  • WR250R/X FMF PowerCore4 Performance Package
  • WR250R/X FMF Q4 Performance Package
  • WR250R/X Pro Circuit T-4 Performance Package



    ** In Stock - Usually leaves our warehouse same business day



    WR250R WR250X Bazzaz Z-FI Fuel Controller
    F780Retail Price: $324.95Our Price: $319.95
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