CHOP CULT HOME
Email Password
Search
  1. #1
    Member

    Content on this page requires a newer version of Adobe Flash Player.

    Get Adobe Flash player


    Join Date
    Apr 2012
    Posts
    69

    Default Sportster battery DRAIN

    Hey guys,

    I'm having an issue sourcing the problem for my Sportster battery drain
    Bike: 2002 1200

    Problem: Battery slowly drains over the course of 2 days. On second day not enough to power the starter. click click click

    I already bought a new starter relay,
    New battery,
    cleaned and tightened terminals,
    Gone through the bike for a ground and couldnt find one

    Anyone go through this?
    Any idea of what to check next?

    Mark

  2. #2
    Senior Member

    Content on this page requires a newer version of Adobe Flash Player.

    Get Adobe Flash player


    Join Date
    Aug 2009
    Posts
    258

    Default

    its pretty easy to find parasitic drain. check out this vid and tailor its advice to your bike. the guys a little wordy but skip ahead a bit and it should give you what you need.

  3. #3
    Senior Member

    Content on this page requires a newer version of Adobe Flash Player.

    Get Adobe Flash player


    Join Date
    Dec 2012
    Posts
    1,615

    Default

    Open your FSM and perform the regulator bleed test.

  4. #4
    Member

    Content on this page requires a newer version of Adobe Flash Player.

    Get Adobe Flash player


    Join Date
    Jun 2013
    Posts
    93

    Default

    If you have a volt meter (digital preferred), there are several things you can and should check. Static battery charge, running battery charge, short in the stator, running stator voltage, short at voltage regulator. There should be an electrical diagnostic flow chart in the FSM that will guide you step by step in isolating a problem source.

Share This



Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Log in

Log in