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450r

  1. YFZ450 & YFZ450R General Talk
    Will I need to do the Ais delete on my 450r after installing a vortex? Or is it not necessary with the vortex since it overrides it I believe?
  2. YFZ450 & YFZ450R General Talk
    Any input on why the dasa exhaust is not as good on the EFI yfz? And why the yoshi and barkers is the most recommended? Thanks!
  3. YFZ450 & YFZ450R General Talk
    Any recommendations on who has the best package deal on a Big 3 kit for 2018 yfz450r. Looks like I see a lot of guys going with KBmotorsports. They the best deal around, anyone compete with them? Thanks!
  4. YFZ Powertrain
    I recently bought a 2009 YFZ 450R with a acrb conversion. Ever since I got it, I can't seem to get the idle right. I did buy a tach/hourmeter that wraps around the coil, so I could see numbers and not guess at it. I know the service manual says the Idle should be right around 2,000, but when I...
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