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708ai

06 WR 450 Exaust

3 posts in this topic

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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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.

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