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#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 oem oil parts parts review pros & cons pros and cons quad racing atv rally suspension 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 450 2004 yfz 450 2005 yfz 450r yfz450 yfz450 help yfz450 problems yfz450 tuning yfz450r yfz450r se
  1. Maintenance
    Hey all. Ive got a 2017 yfz 450 with 52 hours on it. 15 or so hours on the rebuild. I’ve got a big 3 kit on it. Ever since I got my rebuild it’s had a slight leak coming from crank case breather. I’ve changed the oil 3 times since the rebuild.( I change the oil after every trip.) Now the leak...
    engine leaks repairs
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