Question about 1980 Honda CX 500 A

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I have a 1980 Honda CX500c that was given to me. It is not charging correctly. I keep having to remove the battery and put it on a trickle charger. When I got the bike, I was told that the voltage rectifier needed to be replaced. I have since replaced it, and it didn't help the problem. Can someone tell me what my next step might be?

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I would also check the output from your stator to see if the stator is no longer working. You should see a healthy 14 volts when the bike is running above 5000 rpms. If the output isn't around 14, then you will need to replace your stator.

Posted on Sep 23, 2009

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Check to see if your battery is any good. A battery that is no good, will not keep a charge.
That would be the next step, and most likley your problem if the battery froze, or the bike sat for a long time.

Posted on Mar 08, 2009


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Some batteries has been stored for a long time and uncharged and even the aren't been used they are dead, try an other new battery. the one you have is probably dead. sorry.

Batteries that have been left in an uncharged state will sulfate the plates and render them useless. Only by removal of the sulfate will they be useful again. This is a
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Your battery is junk. Replace it.
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Charging system on my honda cx500c is not keeping the battery charged. I suspect I have a stator problem because they have a history of getting too hot and failing. what do you think?

Hi and welcome to FixYa,

Initially, would have to agree, these bikes are notorious for stator problems. The early models actually have 3 windings to my knowledge.

Good luck and Thank you for using FixYa. Happy Holidays.

Dec 12, 2008 | 1980 Honda CX 500 A

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