headlights yo-yoing?

Discussion in 'Electrical' started by fred815, Jun 3, 2013.

  1. fred815

    fred815 New Member

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    what could be causing my headlights to start a yo-yo effect? Going dim then back to normal then dim and so forth.?
     
  2. Fastlinnie

    Fastlinnie Member

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    Sounds like losing ground to headlamp
     
  3. Jack Klarich

    Jack Klarich Expert Member

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    Welcome to The Forum, along with a bad ground you could have a charging system or battery issue Harley Davidson Forums This link will guide you thru the tests, good luck and check back in:s
     
  4. tourbox

    tourbox Senior Member

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    When you pull the head light out look at the connector for excessive heat signs. They have been known to overheat from the bulbs heat and cause the connector to warp and get bad connections.
    tourbx