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air box mod question

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i thought so, i didn't want to do anything without knowing, it'll make the air to fuel ratio to rich?i think?

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i thought so, i didn't want to do anything without knowing, it'll make the air to fuel ratio to rich?i think?

Too lean!

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In colo we found about a 1.25" hole in the top of the airbox, the 17.5 pilot jet, stock main jet and the bike runs very well, starts good nuff as well. Just remember we are talking small gains, the bike is not going to suddenly pull like a YZ

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