2000 Harley Davidson XL 1200 C Sportster Custom Logo
Posted on Aug 11, 2009
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2001 hd sportser 1200 xl custom...new battery discharges when riding or parked harley shop said charging system was good problem getting worse need help please...........

  • Anonymous May 11, 2010

    do you know if they tested reg/rec

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  • Contributor 42 Answers
  • Posted on Aug 14, 2009
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Rob has a fine point, very good solution indeed. If your certian it's drawing when the bike is off I would suggect the same thing. Also just an FYI, Sadly there are actually alot of dealers that don't test charging systems correctly and they should have checked for a Milliamp draw. You should have no more then 300 milliamps when the bike is off. Rob's solution (if it is detected, and can be done with a multimeter following the manual) locates the draw. /me add's robs answers to favorites.

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  • Master 858 Answers
  • Posted on Aug 11, 2009
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If charging system is ok then you may have a drain in a circuit!
this may be a low amperage drain & would not be enough to actually blow the fuse or burn out the wire!
It will require specialist [auto electrician] to investigate further!
but if you have some good experience in electrics you can make a probe using a resisitor wired to the probe & an LED light to trace the affecting wire!
this will allow you to see the exact area that is causing the problem as the LED will get brighter the closer you get to that point!
Cheers Rob

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I would like to fit an oil cooler to sportser.i am a handy guy but not a mechanic.do i need a pro to fit it. thanks, bebby

If you live in the south thats a good idea, but if your in the north and ride during colder times, be sure and make a cover for it, Harley makes a really good one for sportsters ,, and the instructions that come with them is very easy to follow , My friend added a gauge inline with his that I wish I had done to mine ( some day maybe LOL)
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Dear,

To get the correct specified battery, its better to take the battery with you to the market along and get the replacement with you if possible,
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Get one of the smart chargers made by Battery Tender or Yuasa. You can get one of those that look like the power supplies for telephones, "wall warts". or you can get multiple units that charge up to six batteries. They come with "pig tail" wires to permanently connect to your battery making it easy to connect up the charge when you get finished riding. They keep you battery fully charged, extend the life of the battery, and won't overcharge it even leaving it connected continously.

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My harley 1200c sportser 2004 isnt starting after a new battery was installed. was told i didnt have to charge the battery it would charge itself in 90 mins ,one those fill cell batteries can you help

The cells are full? Check the battery with a volt meter - should read at least 11 volts on the DC scale, to be able to start your motorcycle. If it is at 11 volts, you really need to charge it.

If volts are good, check volts on the starter side of the solenoid with the run switch in the ON position and the key in start position. No volts = bad solenoid.
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I bought a 2004 Sportster 1200. There is no owvers manual and I am in Zambia. Can I download the Manual?

unless you can borrow one,or find one at a library ,good luck,harley has patten on their manuals-called job security($85hr shop rate)you can buy a complete shop manual from them for around 75-100,depending on where you get it...try 2004 sportser manual..on ebay
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