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Charging system diagnosis help

Old 07-13-2007, 12:24 AM
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Charging system diagnosis help

So my gauges did the "acting possessed" thing which usually indicates a serious issue with the charging system. I did manage to determine the failure is of the not enough voltage variety, so at least I'm not toasting other electronics.

Here's my question: How do I determine if it's the R/R or the generation system causing the low voltage condition?

Current status: 12.5 volts at the battery, bike off. 13.1ish volts, bike on. 13.7 volts, bike on @ 5k (should be ~14.5(?)).


Should I just replace the R/R (either with Honda OEM or R1 mod, haven't decided which yet), or keep trying to chase down the electrical gremlin?
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Old 07-13-2007, 05:46 AM
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I haven't heard of many '02s and later with the finned R/R failing but anything is possible... check the output at 2k rpm and make sure the battery connections are clean and tight.


Originally Posted by Galaxieman View Post
So my gauges did the "acting possessed" thing which usually indicates a serious issue with the charging system. I did manage to determine the failure is of the not enough voltage variety, so at least I'm not toasting other electronics.

Here's my question: How do I determine if it's the R/R or the generation system causing the low voltage condition?

Current status: 12.5 volts at the battery, bike off. 13.1ish volts, bike on. 13.7 volts, bike on @ 5k (should be ~14.5(?)).


Should I just replace the R/R (either with Honda OEM or R1 mod, haven't decided which yet), or keep trying to chase down the electrical gremlin?
RickB is offline  
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