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FJR Motorcycle Forums
FJR Specific Discussion
Converting Gen 2 AE to A engine - is it possible?
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<blockquote data-quote="wfooshee" data-source="post: 1208107" data-attributes="member: 6354"><p>There's almost no movement in those parts. The wear happens in parts that rotate against each other, or mate and unmate from each other. The shift drum spends 99.999435% of its time motionless.</p><p></p><p>In the case of my engine, the one shift fork had a gear wheel spinning against it most of its life, scraping the surface down. The 4th gear dogs mated poorly, wearing the edges down, which made them mate even more poorly, wearing them further over time.</p><p></p><p>Almost nothing ever happens at the other end of the shift forks, where that pin rides the grooves in the drum. Very little motion, and what motion there is has NO speed associated with it. Where the gear was grinding against the fork at several hundred RPM, the motion of the shift drum is a fraction of an inch every shift.</p></blockquote><p></p>
[QUOTE="wfooshee, post: 1208107, member: 6354"] There's almost no movement in those parts. The wear happens in parts that rotate against each other, or mate and unmate from each other. The shift drum spends 99.999435% of its time motionless. In the case of my engine, the one shift fork had a gear wheel spinning against it most of its life, scraping the surface down. The 4th gear dogs mated poorly, wearing the edges down, which made them mate even more poorly, wearing them further over time. Almost nothing ever happens at the other end of the shift forks, where that pin rides the grooves in the drum. Very little motion, and what motion there is has NO speed associated with it. Where the gear was grinding against the fork at several hundred RPM, the motion of the shift drum is a fraction of an inch every shift. [/QUOTE]
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FJR Motorcycle Forums
FJR Specific Discussion
Converting Gen 2 AE to A engine - is it possible?
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