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Everything Dirt Bike
General Dirt Bike
yz250f 2007 valve problems.
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<blockquote data-quote="PawPaw" data-source="post: 182796" data-attributes="member: 1934"><p>You can get away with doing a reshim on the valves a time or two, but the valves are getting longer and or the valve seats are being beat down and thus changing the valve clearances. You don't want to let one of the valves break as that is major engine failure and can create a complete engine replacement need.</p><p>You may want to think about having the head serviced and new valves , springs, guides, retainers and keepers installed. That way you will know it's condition.</p><p>Now also keep in mind that if the maintenance was neglected on the valves, most likely more involved maintenance issues like the crank were also neglected.</p><p>I know you just want to ride, but it's winter and the time is right for a complete tear down and rebuild so you can have a good ride in the spring and summer.</p><p></p><p>Paw Paw</p></blockquote><p></p>
[QUOTE="PawPaw, post: 182796, member: 1934"] You can get away with doing a reshim on the valves a time or two, but the valves are getting longer and or the valve seats are being beat down and thus changing the valve clearances. You don't want to let one of the valves break as that is major engine failure and can create a complete engine replacement need. You may want to think about having the head serviced and new valves , springs, guides, retainers and keepers installed. That way you will know it's condition. Now also keep in mind that if the maintenance was neglected on the valves, most likely more involved maintenance issues like the crank were also neglected. I know you just want to ride, but it's winter and the time is right for a complete tear down and rebuild so you can have a good ride in the spring and summer. Paw Paw [/QUOTE]
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Everything Dirt Bike
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yz250f 2007 valve problems.
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