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FJR Motorcycle Forums
Technical & Mechanical Problems
SH__37 issue for the YCCS bikes
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<blockquote data-quote="mcatrophy" data-source="post: 1430971" data-attributes="member: 3187"><p>In total ignorance:</p><p></p><p>The summary for the error code ...</p><p></p><p><img src="https://atrophy.lock.net/pi/extras/SH__37_summary.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>... suggests that the MCU is seeing a low voltage on one or other of the two actuator motors. Since you have checked all connections (though the bit of correlation between damp and the problem makes me suspicious of connectors), my simplistic mind suggests one of the units is drawing too much current.</p><p></p><p>As I know you are well aware, reasons for this include too much load on the motor (a mechanical issue), weak field magnet (unlikely with modern magnetic materials), or dirt (or nicely conductive brush dust) build-up in the commutator. With a motor armature in your hand, if the commutator segments have dirt between them, I would suggest you clean the commutator (brake cleaner and a stiff brush), reassemble and try it.</p><p></p><p>I say this without any knowledge of the difficulty of the job, also realising that this is still an intermittent problem, and unless you find a "smoking gun", you will never know it's fixed until you know it isn't fixed. If you see what I mean.</p><p></p><p>None of my YCC-S bikes (I'm on my fourth) have ever given this error, though I have had one or two strange ones. I have never done the miles that you have, maximum is about 32000 miles. So, as I said above, all this in total ignorance.</p><p></p><p>Good luck.</p></blockquote><p></p>
[QUOTE="mcatrophy, post: 1430971, member: 3187"] In total ignorance: The summary for the error code ... [IMG]https://atrophy.lock.net/pi/extras/SH__37_summary.jpg[/IMG] ... suggests that the MCU is seeing a low voltage on one or other of the two actuator motors. Since you have checked all connections (though the bit of correlation between damp and the problem makes me suspicious of connectors), my simplistic mind suggests one of the units is drawing too much current. As I know you are well aware, reasons for this include too much load on the motor (a mechanical issue), weak field magnet (unlikely with modern magnetic materials), or dirt (or nicely conductive brush dust) build-up in the commutator. With a motor armature in your hand, if the commutator segments have dirt between them, I would suggest you clean the commutator (brake cleaner and a stiff brush), reassemble and try it. I say this without any knowledge of the difficulty of the job, also realising that this is still an intermittent problem, and unless you find a "smoking gun", you will never know it's fixed until you know it isn't fixed. If you see what I mean. None of my YCC-S bikes (I'm on my fourth) have ever given this error, though I have had one or two strange ones. I have never done the miles that you have, maximum is about 32000 miles. So, as I said above, all this in total ignorance. Good luck. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
SH__37 issue for the YCCS bikes
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