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tctrailrider

midrange bog

2 posts in this topic

2000 WR400 have mid range bog. Have moved needle clip up and down, seems to run the same, plug looks good. Stock jetting, stock pipe with Vor Tip baffle, top end is excellent power & rpm. Have YZ pipe with same results, to loud, bike used for single tracking. Thinking of YZ timing or Power Bomb header. Any thoughts?

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