06 WR 450 Exaust

2 replies to this topic
  • 708ai

Posted August 18, 2007 - 11:45 AM


Has anyone takin the baffles out of the wr 450. I have a pmb insert but want more but dont know what I am doing or if it well even work. Thank you for any advice or input

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Posted August 18, 2007 - 12:12 PM


I took the entire tip(baffle) out of mine. I left the spark arrester in and it runs fine. I have a YZ needle, 170 main and 48 pilot jets with the fuel screw out 1-3/4 turns. According to the jetting info on here thats way to rich but its 100 degrees with 20-30% humidity and it runs better now than ever. All you need are Allen wrenchs to get the cap off and then the tip out.

  • MountainMax

Posted August 18, 2007 - 04:15 PM


there is a great thread on this on how to remove any/all of the baffles.


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