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Everything Dirt Bike
Make / Model Specific
Yamaha
Yz250f tight intake valves
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<blockquote data-quote="Mihylo33" data-source="post: 196392" data-attributes="member: 408"><p><img src="https://www.dirtbikeaddicts.com/static/images/smilies/prof.gif" class="smilie" loading="lazy" alt=":prof:" title="Professor :prof:" data-shortname=":prof:" /></p><p>Get the Yamaha service manual 1st. That's service not owners manual. If you already have one then you are already ahead of the game. 2nd if you can not shim the valve anymore than it already is then you need a valve job which at bare minimum is replacing the valves. The head will need to be looked at for damage. Find a reputable shop that sells parts and does repairs. Buy some parts get your head measured up for free is usually the rule of thumb for the really good guys. </p><p>This is what it could look like if you continue to ride or cheap out on doing the right job. </p><p></p><p>[ATTACH=full]27682[/ATTACH]</p></blockquote><p></p>
[QUOTE="Mihylo33, post: 196392, member: 408"] :prof: Get the Yamaha service manual 1st. That's service not owners manual. If you already have one then you are already ahead of the game. 2nd if you can not shim the valve anymore than it already is then you need a valve job which at bare minimum is replacing the valves. The head will need to be looked at for damage. Find a reputable shop that sells parts and does repairs. Buy some parts get your head measured up for free is usually the rule of thumb for the really good guys. This is what it could look like if you continue to ride or cheap out on doing the right job. [ATTACH=full]27682[/ATTACH] [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
Yz250f tight intake valves
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