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FJR Motorcycle Forums
FJR Parts & Accessories Discussions
Valve guide material?
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<blockquote data-quote="Ignacio" data-source="post: 1367875" data-attributes="member: 434"><p>That was well-litigated here as well as the previous forum many here were at. That's why it's <a href="https://www.fjrforum.com/forum//index.php/forum/60-technicalmechanical-problems/" target="_blank">pinned as the very first issue on this forum</a>. Short answer is that there was much speculation (including the bronze/other material issue including destructive testing by one of the forum admins), but I believe consensus in the end is that was <strong>valve guide <u>seals</u></strong>. Not quite enough oil to lubricate and that then caused excessive valve guide wear.</p><p></p><p>It also tended to be less of a problem IIRC in later Gen bikes (i.e. 2005 and 2005.5)</p><p></p><p>I wouldn't imagine different guides would hurt...or necessarily help. I'd read the thread in its entirety and then make sure whatever valve guide <u>seals</u> you choose are up to the task.</p></blockquote><p></p>
[QUOTE="Ignacio, post: 1367875, member: 434"] That was well-litigated here as well as the previous forum many here were at. That's why it's [URL="https://www.fjrforum.com/forum//index.php/forum/60-technicalmechanical-problems/"]pinned as the very first issue on this forum[/URL]. Short answer is that there was much speculation (including the bronze/other material issue including destructive testing by one of the forum admins), but I believe consensus in the end is that was [B]valve guide [U]seals[/U][/B]. Not quite enough oil to lubricate and that then caused excessive valve guide wear. It also tended to be less of a problem IIRC in later Gen bikes (i.e. 2005 and 2005.5) I wouldn't imagine different guides would hurt...or necessarily help. I'd read the thread in its entirety and then make sure whatever valve guide [U]seals[/U] you choose are up to the task. [/QUOTE]
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Valve guide material?
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