power loss/cut out when headlite & signal lites on

Discussion in 'Electrical' started by Ragtop, Mar 29, 2010.

  1. Ragtop

    Ragtop Member

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    Anyone have any ideas on this one? I have a 1991 Harley Heritage Softail Classic. The bike runs like a new one until I turn on the headlight and try to use the turn signals, then it cuts out and loses power. I could ride the bike across the country with the headlights off and no turn signals on. What do I need to look for here?? I would love to hear some input on this. Thanks :panic
     
  2. glider

    glider Veteran Member

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  3. sharpscuba

    sharpscuba Banned

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    Glider has you covered here. You have a voltage drop.
     
  4. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Adding to what was said, the voltage drop could be a bad cell in the battery as well, so that the stator/is working over capacity trying to power a shorted cell as well as the rest of the circuit load, you add the 6A load of the headlamp and 6A load of 2 3A bulbs puts it over the top. Just make sure you remove, shine up all contact surfaces (BOTH ENDS) for both battery posts and starter cable (you can lose 1-2A or more for each one [the cable end(s) will be hot to the touch]. Coat with dielectric grease to slow down corrosion...may just want to drain a little of the primary oil and sniff...if it smells burnt your stator is probably toast.