Electrical problem -Anyone care to.... - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 20 (permalink) Old 08-17-2015, 03:16 PM Thread Starter
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Unhappy Electrical problem -Anyone care to....

make a guess as to what caused this perhaps....?
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post #2 of 20 (permalink) Old 08-17-2015, 03:16 PM Thread Starter
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A few months ago my bike was running flawlessly when I decided to use it for some light track duty. I removed my undertail and swapped tail sections. Removing the undertail took away the rigidity and support of the ECM and PC unit on top of that, so it was bouncing a bit more.
Rode one session for 20 minutes and was fine but went back out fo the next session and after a lap or two the bike started running intermittenly on/off on one of the cylinders, not sure which one. Been just sitting in the garage since then until last night when I started looking around electrical stuff and found this first, output connector for the R/R.
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post #3 of 20 (permalink) Old 08-17-2015, 03:18 PM
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Poor connector contact? Maybe combined with a voltage spike?
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post #4 of 20 (permalink) Old 08-17-2015, 03:24 PM Thread Starter
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Originally Posted by extrapolator View Post
Poor connector contact? Maybe combined with a voltage spike?
ummmm...the connector was together tight, thats for sure.

I'm planning on replacing the whole rear wire harness with a new one anyways.
Is this eveidence of a R/R failing maybe?
I have seen what you get when a stator goes but this is the other connector.
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post #5 of 20 (permalink) Old 08-17-2015, 03:27 PM
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Its pretty normal, the old shunt type reg/rec's run hot, any increased resistance will cause that melting plug
Perfect opportunity to fit a mofset unit
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post #6 of 20 (permalink) Old 08-17-2015, 03:38 PM
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Quote:
Originally Posted by sbkdrew View Post
ummmm...the connector was together tight, thats for sure.

I'm planning on replacing the whole rear wire harness with a new one anyways.
Is this eveidence of a R/R failing maybe?
I have seen what you get when a stator goes but this is the other connector.
OK, now you've moved past my 'knowledge'. (aka guesses)

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Originally Posted by dansp1 View Post
Its pretty normal, the old shunt type reg/rec's run hot, any increased resistance will cause that melting plug
Perfect opportunity to fit a mofset unit
WTH? 'Melting' isn't too far from 'fire'.

So, what caused the increased resistance ... jiggling connector?

But he said the connector was tight ... Maybe the wire itself wasn't crimped into the connector very well? Corrosion? (not the cleanest connector I've ever seen; looks like some dirt inside it; who knew you had to clean your connectors, right??)
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post #7 of 20 (permalink) Old 08-17-2015, 03:56 PM
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Connector was melted together, connections were probably corroded
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post #8 of 20 (permalink) Old 08-17-2015, 04:31 PM
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Quote:
Originally Posted by sbkdrew View Post
ummmm...the connector was together tight, thats for sure.

I'm planning on replacing the whole rear wire harness with a new one anyways.
Is this eveidence of a R/R failing maybe?
I have seen what you get when a stator goes but this is the other connector.
Yes, that looks familiar with some R/R failures. You can buy new connectors from Eastern Beaver

R/R Connectors

I am sure you might remember this thread...

https://www.rc51forums.com/forums/60-...rectifier.html



The very first schoolbook that was written had God all over it. --Dave Mustaine
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post #9 of 20 (permalink) Old 08-17-2015, 05:34 PM Thread Starter
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Yes, that looks familiar with some R/R failures. You can buy new connectors from Eastern Beaver

R/R Connectors

I am sure you might remember this thread...

https://www.rc51forums.com/forums/60-...rectifier.html
I'll obviously look into that and see if it is still available.
More than likely it was just the R/R's time to go maybe huh?
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post #10 of 20 (permalink) Old 08-17-2015, 07:57 PM
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I'll obviously look into that and see if it is still available.
More than likely it was just the R/R's time to go maybe huh?
They are an odd component...you could have a 2 year old bike or a 25 year old bike and they just go bad for whatever reason. Heat is the biggest enemy but still doesn't explain how intermittent they fail.



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