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Discussion Starter · #1 ·
...when a stator fails.



what actually happens to the stator when it goes bad, do the windings corrode? do they wear out and lose contact? does sludge build on them?



the reason i ask is because my bike has been sitting for years until i got it out, now every time i ride it it seems a little better, like something is breaking in could be i just got a really good batch of gas i dont know
 

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Generally the mode of stator failure is a breakdown in the wires insulative coating, - hence the very common short to earth.



All the old failed stators I have tested have expired in this way.



The continuity test between the 3 phases would be looking for an open circuit [broken] wire so this must also be possible but I have never seen this so I'm assuming this is the less likely mode of failure.



Either way, this is not something that can repair itself.



I guess the ignition windings must also fail in a similar way.



Your bike feeling better each time you ride it may be crap working it's way through the carbs
 

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1978 CX500 "The Grub", 1983 GL650I "Nimbus"
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When a stator fails gradually, the insulation breaks down between individual turns of the same wire, leading to a short-circuit within a coil. This manifests as decreased resistance found during a static test, and decreased voltage in operation.





R
 
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