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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. YFZ450 & YFZ450R General Talk
    So I just got my Vortex ECU in the mail and installed it on my 2023 YFZ450r just fine. However, the issue came when I went to start the bike. When trying to start the bike cold with the Vortex ECU installed, it just cranks and cranks and eventually starts for a second but then stalls. I’ve tried...
    vortex ecu yfz450 yfz450 help yfz450 problems yfz450 tuning
  2. YFZ450 & YFZ450R General Talk
    i want to tune my yfz450 2012 to make it faster right now it is stock any recommendations on what should i start doing to make it faster i was thinking of a power comander but only the plug and play i dont want to be plugging in my computer everytime lmao, im new to this and i really want to...
    help please racing atv tuning yfz450 yfz450 tuning
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