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  (#1)
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TricknR1's Avatar
 
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May 24, 2005, 11:18 AM

Friend has a 99 CBR900RR and the battery won't charge. Any suggestions? Thanks in advance.


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  (#2)
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May 24, 2005, 11:22 AM

well if the battery wont even charge it means that the power cells are shot i hope you didnt use jumpers to try to charge it. anyway go buy a new battery. the old one is gone for good


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  (#3)
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May 24, 2005, 11:31 AM

does the battery show 12.6 volts with no load? Good solid connections to the battery that are corrosion free? When it's started, rev the bike to about 5 grand. Should show 13.5 - 15 volts. Not under and not over. If it's charging, but either low or high, it's probably the regulator/rectifier. Stators can go bad but that's less common.


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  (#4)
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May 24, 2005, 11:32 AM

My bad I didn't include nothing with that post so boo on me. We have replaced everything from the battery to the stator and still nothing. Could it be a cracked flywheel? No visible cracks but maybe needs removed and inspected closer.


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  (#5)
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May 24, 2005, 11:34 AM

Quote:
Originally Posted by Scot
does the battery show 12.6 volts with no load? Good solid connections to the battery that are corrosion free? When it's started, rev the bike to about 5 grand. Should show 13.5 - 15 volts. Not under and not over. If it's charging, but either low or high, it's probably the regulator/rectifier. Stators can go bad but that's less common.


Only around 11.2 or so with idle. When reved might get 12.5.


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  (#6)
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May 24, 2005, 11:35 AM

the flywheel has nothing to do with starting the bike
are you sure you are in Neutral.


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  (#7)
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May 24, 2005, 11:38 AM

Quote:
Originally Posted by fictionnn
the flywheel has nothing to do with starting the bike
are you sure you are in Neutral.



???????
The bike run. Won't charge.


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May 24, 2005, 11:40 AM

im just joking. but seriously it sounds like you are gonna have to go through your entire electical sys and look for a short


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  (#9)
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May 24, 2005, 11:45 AM

Quote:
Originally Posted by fictionnn
im just joking. but seriously it sounds like you are gonna have to go through your entire electical sys and look for a short



Been there done that. All connections look good including ground.


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  (#10)
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May 24, 2005, 11:45 AM

Sounds like a malfunctioning Flux Capacitor. Maybe it really is charging, but sending the charge............Back to the future.

Or........

I have no fucking clue what I am talking about and can't resist making smart ass comments in threads.



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  (#11)
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May 24, 2005, 11:47 AM

Quote:
Originally Posted by GUZZLER
Sounds like a malfunctioning Flux Capacitor. Maybe it really is charging, but sending the charge............Back to the future.

Or........

I have no fucking clue what I am talking about and can't resist making smart ass comments in threads.




We know...it's a W.A.R.P. thang bro.....


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  (#12)
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May 24, 2005, 11:47 AM

Motorcycle electrical systems are incredibly sensitive, especially Hondas. If your battery is running low, replace it. If you don't, you can cause more and expensive damage. Hondas are known for their rectifiers going bad, a little trick I just learned. Replace the battery and THEN test the system.


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  (#13)
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May 24, 2005, 11:52 AM

Quote:
Originally Posted by boomboom929
Motorcycle electrical systems are incredibly sensitive, especially Hondas. If your battery is running low, replace it. If you don't, you can cause more and expensive damage. Hondas are known for their rectifiers going bad, a little trick I just learned. Replace the battery and THEN test the system.



Did that. Came up short(on voltage)......story of my life...


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  (#14)
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May 24, 2005, 11:55 AM

try opening up the battery and throwing in a little distilled water it could be that the fluid in the battery lost its charge and needs a refresher. hey it worked on my car who knows it could work on a bike???


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  (#15)
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May 24, 2005, 12:01 PM

A cracked flywheel would exhibit other symptoms I'd think. I am leaning toward regulator/rectifier. Did you say you replaced that? If so, are you sure you didn't replace it with another bad one?


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