intermittant charging 2004 flht

Discussion in 'Electrical' started by harleyreb, Jun 6, 2010.

  1. harleyreb

    harleyreb Member

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    had a problem with charging system. stator tested good on bleed test a.c. output specs tested in tolerance. Put on new reg. now charges good most of the time, but still falls off when rpm,s are above idle, but not all the time. I am thinking a bad ground but i don't know for sure. HELP!! i don't have a lot of money to work with, or time to work on it.
     
  2. Jack Klarich

    Jack Klarich Expert Member Contributor

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    Test light, hook up alligator end to negative on battery. Every area you touch with the probe end of the test light will cause the light to light up if you have a ground. Make sure you start at the battery ground first and dont be afraid to wiggle the wires a bit to see if it causes the light to go out:D
     
  3. harleyreb

    harleyreb Member

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    when you say area, do you mean every positive wire or connection in the charging system or throughout the whole electrical system.
     
  4. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Harleyreb, there are several posts on the subject...the deal here is it is intermittant so the mere fact you are testing, creates artificial conditions that will make it tough to find. First thing is to check and clean all the large wire connections (both ends) to the battery, grounds and starter. Use dielectric grease after you have scraped the connections clean and shiny. Also take a whiff of the oil by pulling the chain inspection cover. A burnt smell rather than plain gear oil smell may be indicating stator condition may not be good.

    Do you have an accurate DMM (Digital Multi-Meter)...Harbor Freight has a sale on them $1.99 and if you have 20% off coupon it is a real deal. Running, the bike should provide 13.5-14.5V charging voltage when you rev the bike a bit over idle (you have the headlight, EFI, ECM & Regulator drawing charge current AFTER your starter drew 250A reserve from the battery when you hit the 1-5 sec start button/cycle. Reading the meter while the idle is up a bit (use the throttle position star) while gently jiggling the connections (be careful not to wear metal and not short anything out, the motor is RUNNING) seat OFF may help.

    http://www.hdtalking.com/electrical/26544-replaced_regulator_but_still_not_charging.html
     
    Last edited: Jun 6, 2010
  5. Jack Klarich

    Jack Klarich Expert Member Contributor

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    Every metal on the bike, frame cases etc. anything metal on the bike if grounded should light the test light
     
  6. harleyreb

    harleyreb Member

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    test light dosn't work. checked it out using dvom every thing is in specs. all connections seem fine.It,s raining now so I cant pull the fairing and check ground wires, but I will tomorrow.
     
  7. Hoople

    Hoople Account Removed

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    Bleed test is not for checking stator, It is for checking regulator.
    How did you perform the stator ac output test and what were your readings.
     
  8. harleyreb

    harleyreb Member

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    20 vac,s @ 1000 rpms. around 40 @ 2000. around 60 @ 3000.
     
  9. Hoople

    Hoople Account Removed

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    Is a 2004 (3) phase or single phase. How may wires are coming out of stator,, 2 or 3..

    Just curious. How old is your battery.
     
  10. harleyreb

    harleyreb Member

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    single phase. two wires. 2years. checked battery holds a charge at 12.6volts