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. 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,

    • Customer Service Techs
      Customer Service Techs

      Hi, Gary. Please contact our Customer Service Team at 1-855-231-0653; we would be happy to assist you.

  2. 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!!!