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#help #suspension #yfz450 2008 2008yfz450 2017 yamaha yfz 450r 450 450r a arms aftermarket airbox ais delete backfiring battery battery issue best coilovers big 3 big bore bog carb carb conversion chain clutch coolant crank cranks wont fire up dasa ecu efi efi tunning electric issue electrical problem engine exhaust fci fci yfz450r fourwerx fuel controller fuel injected fuel programmer full exhaust graphics gytr help help please high compression high idle hmf intake jetting leak maintainance mapping maps msd msd blaster need help nerf bars new owner no spark no start oil parts parts review pros & cons pros and cons quad racing atv rebuild rev speed rossier sand dunes shocks sprocket stalling starting starting problem stroker stroker kit throttle transmission trinity tune tune yfz450r tuning vortex vortex ecu wiring wont start yfz yfz 2015 yfz 450 2004 yfz 450 2005 yfz 450r yfz450 yfz450 help yfz450 problems yfz450 tuning yfz450r yfz450r se
  1. YFZ Powertrain
    Have a 2017 YFZ450R, just got the Vortex ECU, and hoping for some direction on map/fuel settings... I live outside of Denver, and am at 5,300ft Elevation. Mods: 1. AIS Delete 2. 38 Motorsports Breather Box 2. Yoshi RS-2 Full Exhaust -Standard intake (airbox lid-on) -No Engine modifications...
    ecu fuel controller vortex
  2. YFZ450 & YFZ450R General Talk
    i have a 14 yfz450r fuel injected. ever since i installed my new exhaust and intake, it sounds like an ak-47 once i let off the throttle 🤣🤣. the back firing is crucial. not wanting to spend 800$ on a vortex. could a power commander fix the back firing?
    2014 backfiring fuel controller fuel injected yfz 450r
  3. YFZ450 & YFZ450R General Talk
    I have a 2019 yfz 450r with a full hmf egg shape exhaust, gytr air filter mod, and the hmf fuel optimizer. If someone could help me out with what I should adjust the settings to for the best tune. Right now it is the beginning of winter where I am. It still has a slight bog and the pipe glows...
    fuel controller fuel programmer tune tune yfz450r tuning
  4. Maintenance
    I have a 2019 yfz 450r with a full hmf egg shape exhaust, gytr air filter mod, and the hmf fuel optimizer. If someone could help me out with what I should adjust the settings to for the best tune. Right now it is the beginning of winter where I am. It still has a slight bog and the pipe glows...
    fuel controller fuel programmer tune tuning
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