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battery keeps going dead

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Old Feb 10, 2012 | 03:10 PM
  #11  
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From: socal 949/951
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it's charging...

was the battery fully charged when you got it?
has it been dead since?
 
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Old Feb 10, 2012 | 03:10 PM
  #12  
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Originally Posted by mrcbr25
ok well i did the test on the battery it is showing 14.5 volts when revving it 5k so what could it be?
Search the forum for the service manual.
They have a step by step to follow through and it will tell you exactly what it is.
99% of the time the Rectifier is the culprit though.
 
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Old Feb 10, 2012 | 04:13 PM
  #13  
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when i first got the battery i had to charge it but it was fine until i let it sit for like a week i charged it again rode my bike on Tuesday with no difficulty and Wednesday is when it went dead after riding it for 30 mins but since ive charged it back up it cranks fine and show the correct amount of voltage but again i still think something is wrong
 
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Old Feb 10, 2012 | 05:35 PM
  #14  
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Exact same problem as mine, You most likely blew a diode in the rectifier.

https://cbrforum.com/forum/f4i-main-...ry-r-r-130980/
 
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Old Feb 10, 2012 | 06:10 PM
  #15  
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Originally Posted by jeffjones
Exact same problem as mine, You most likely blew a diode in the rectifier.
the r/r is a common failure part. it may be worth replacing anyway.
 
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Old Feb 10, 2012 | 06:44 PM
  #16  
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wheres the cheapest place o get the r/r from?
 
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Old Feb 10, 2012 | 07:28 PM
  #17  
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Originally Posted by mrcbr25
wheres the cheapest place o get the r/r from?
f4i rectifier | eBay
 
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Old Feb 14, 2012 | 09:06 AM
  #18  
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ok heres an update i took it out for 4miles yesterday cut the bike off at the half way point and it fired up fine, i put it back on my battery tender jr and it registered as if the battery was fully charged im confused now
 
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Old Feb 14, 2012 | 09:09 AM
  #19  
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Does it die while riding or when you stop?
 
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Old Feb 14, 2012 | 09:14 AM
  #20  
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no it was fine yesterday
 
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