Regulator or Alternator

Hi I just got back from a 4 month deployment to Iraq and when to start my 2006 HD Street Bob (FXDBI) and the battery was dead so I went to the local auto shop and bought a replacement battery and the bike then started fine. I let it warm up for about ten minutes and took it out around the block. The bike died during my trip around the block but I was able to restart it and make it home before it died again in my drive way. This time I could here the bike clicking with the bike turned to off, so I took a look at the battery (which was installed correctly) and the positive terminal was melted. There was no arcing I could see between the terminal and the battery housing. Do you think this is a bad battery or something else wrong with the bike? Maybe a bad voltage regulator or alternator? I don’t want to put another battery in a melt it too. Can you help?

 

Marc,   Welcome home. Battery was either not fully charged, always use a Harley battery, or terminals were not tight enough (most likely the cause when positive side melts ). Perform a proper charge system test according to the 06 service manual and Softail Edition DVD. Dynas are a real bear to tighten the terminals but it must be done right, also check grounds to frame.

Wrench Safe, FMH

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5 Responses to “Regulator or Alternator”

  1. Tracy Ayars

    I have a 2010 Harley Davidson Trike last night I was out there tinkering with it and I went the book LED blinker running lights on the fenders and I turn the ignition on and the alarm system would not let the bike start is that mean as a dead battery and it has all new electrical system in it I went from stop to a 52 amp I believe

  2. Jc Walford

    Looking for ground cable location on HD 2012 trike . having same problem with battery dying.

  3. Gordon

    I have melted a terminal on several occasions. I ride a 92 sportster and the vibration on this bike is pretty bad. Causing the nut to work loose, which melted the terminal. May not be your problem but something to check on. THANK YOU FOR YOUR SERVICE TO OUR COUNTRY!!!

  4. Erik

    How can I test my voltage regulator?

  5. Gary

    Yes man check it out been trying to find the commonest things like the wiring system on my bike , why is this so hard and I thought i was buying all the easy find videos when i joined , cant find what i want to see just what you want to show me , this isnt working out so please make it easier to find what i need to know,