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Everything Dirt Bike
General Dirt Bike
yz 125 jetting
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<blockquote data-quote="bobkyle2" data-source="post: 138374" data-attributes="member: 579"><p>Welcome Troy <img src="https://www.dirtbikeaddicts.com/static/images/smilies/cheers.gif" class="smilie" loading="lazy" alt=":cheers:" title="Cheers :cheers:" data-shortname=":cheers:" /></p><p> </p><p>The pro circuit jetting will probably be really close. But to be sure and get it in his sweet spot you might need to fine tune the jetting a bit. </p><p> </p><p>First thing you need to make sure you are not running lean. If you have any indications you are running lean, throw some fatter jets in, And then work your way down. All bikes are different.</p><p>'</p><p>Do a search and learn how to do a "plug chop" ... And there are hundred of jetting charts around.</p><p> </p><p>I would do what procircit says. Or even factory settings. And see what you got. Try to describe to us the idle and the rev... And then plug chop for the main jet.</p></blockquote><p></p>
[QUOTE="bobkyle2, post: 138374, member: 579"] Welcome Troy :cheers: The pro circuit jetting will probably be really close. But to be sure and get it in his sweet spot you might need to fine tune the jetting a bit. First thing you need to make sure you are not running lean. If you have any indications you are running lean, throw some fatter jets in, And then work your way down. All bikes are different. ' Do a search and learn how to do a "plug chop" ... And there are hundred of jetting charts around. I would do what procircit says. Or even factory settings. And see what you got. Try to describe to us the idle and the rev... And then plug chop for the main jet. [/QUOTE]
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