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Everything Dirt Bike
Make / Model Specific
Yamaha
How does the 250F run?
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<blockquote data-quote="James" data-source="post: 114839" data-attributes="member: 2"><p>93 octane (pump gas) is more than enough for a stock compression bike.</p><p> </p><p>I'd suggest starting by adjusting your fuel screw.</p><p> </p><p>BTW has it always done this or did it just start running like this? If it just starting doing this there could be some dirt/crap in your carb. Otherwise it could be that it was never jetted for your altitude/riding conditions. <img src="https://www.dirtbikeaddicts.com/static/images/smilies/noidea.gif" class="smilie" loading="lazy" alt=":noidea:" title="Noidea :noidea:" data-shortname=":noidea:" /></p></blockquote><p></p>
[QUOTE="James, post: 114839, member: 2"] 93 octane (pump gas) is more than enough for a stock compression bike. I'd suggest starting by adjusting your fuel screw. BTW has it always done this or did it just start running like this? If it just starting doing this there could be some dirt/crap in your carb. Otherwise it could be that it was never jetted for your altitude/riding conditions. :noidea: [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
How does the 250F run?
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