Enduralast Regulator Mounting

Discussion in 'Airheads' started by Ullr, Jan 27, 2011.

  1. Ullr

    Ullr C+ Racing

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    I was reading a post recently about the pros and cons of mounting an Enduralast regulator close to the battery or up front close to the alternator. I swear I have searched and read every post with either regulator or Enduralast in it and can't find it. Am I imagining things? Anybody have a clue to what I'm talking about. I'd like to read it again.
    #1
  2. boxermoose

    boxermoose Now fully goosed

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    What year/model airhead?
    #2
  3. Mr. B.

    Mr. B. Climate Controlled

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    There is a writeup about it in a recent issue of Airmail. It was recomended by Oak to mount the regulator up front near the horn in the airstream. The reasoning was to ensure air moving over it and keeping the Red and yellow wires as short as possible. He recomended pulling power from the starter lead instead of the battery. I mounted the regulator on the side of the rear fender behind the battery sidecover on my R90 and works just fine.
    #3
  4. DaveBall

    DaveBall Long timer

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    I cooked on regulator by mounting it under the tank on my RT. Definitely not a good place as not enough air flow. I mounted the replacement to the frame tube behind the left side cover where it gets lots of air flow. That was 20,000 miles ago and still going strong. The mount that comes with the regulator.alternator package worked fine. If you go to their web site, it shows this exact mounting procedure. Check out the photos and instructionspage 12 and 13 of the installation guidelines on their web site.http://www.euromotoelectrics.com/v/.../enduralast installation guidelines_v7.5_.pdf

    IMHO the Enduralast was one of the best electrical upgrades I have ever done on any of my airheads. I do not have any affiliation with Enduralast.
    #4
  5. batoutoflahonda

    batoutoflahonda Long timer

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    I mounted mine up on the cross bar where the horn is. I had to move the horn over and I used electrical clamps with rubber on them to mount it. I can post more detailed pics if you wish. But there was a thread going around about this very subject. You may have to grind about a little off the inboard couple of fins to keep them from rubbing the fender.

    Here it is:

    http://www.advrider.com/forums/showthread.php?t=551272


    [​IMG]
    #5
  6. One Less Harley

    One Less Harley OH.THAT'S GONNA HURT

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    welded a tab on the frame,

    [​IMG]
    #6
  7. blaine.hale

    blaine.hale Long timer

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    [​IMG]
    #7
  8. Ullr

    Ullr C+ Racing

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    Thank you. That was exactly what I was looking for. It's in the Jan 2011 Airmail which I had but hadn't read yet. Well maybe I read it drunk and don't remember. I still swear I read it here first.
    #8
  9. Mendodave

    Mendodave Road Scholar

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    glad to see I did it the way Oak said!

    works nicely, lines are short.

    Mendo
    #9
  10. Pink Floyd

    Pink Floyd Air Head

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    I used the stock battery tray tab and then some spare metal to make a bracket on the right. About 12,000 miles so far and it's been working great.

    [​IMG]
    #10
  11. nowhereman

    nowhereman I'm lost -don't follow me

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    I mounted mine under the tank and it hasn't failed yet. I still don't think it gets enough cool air and will probably move it, but that was around 4 or 5 thousand miles ago and it still works fine. FWIW, I emailed this photo to EME and they said that the location was fine - I still don't have that good a feeling about it though...

    [​IMG]
    #11
  12. DaveBall

    DaveBall Long timer

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    nowhereman, Your picture under the tank looks exactly where I had mine on my RT. It eventually failed there. If you have a naked bike, it probably will be fine. But, to be safe, I would move it. Those things do get fairly warm.
    #12
  13. photomd

    photomd Been here awhile

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    I had mine on the plate the passanger peg of my R100Rs. It was located on the left side of the bike. It quit working within the first year, but that was probably from jumping it when the battery died. I've had the second one under the tank for 3 years and about 10K miles...however it's my winter bike. It's rarely ridden in the heat.
    #13
  14. jdmetzger

    jdmetzger Lone Wolf

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    Not to drag up the same subject, but aside from burning a regulator out mounting it under the tank of an RT, has anyone else run into issues with it under the tank of something like a PD? I'm just checking if we have more experience with it mounted there than 5k miles.

    I just got my kit and I'll be honest - mounting it on my PD where the horn is looks, to me, hideous. That's not saying the GSPD is an especially attractive bike (I always saw it as more function over form) but having a big hunk of aluminum sitting just barely behind the fender isn't my preferred mounting spot. Anyone with a PD is already aware there is a lack of mounting location near the battery so that leaves me with the already mentioned points; where the original regulator went, or under the frame tube directly above the airbox. I'm not sure which of those two really offers a cooler location, though.

    I'm happy to see EME is OK with those points, but I'd still rather not have to deal with a failure.
    #14
  15. bgoodsoil

    bgoodsoil Dare to be Stupid

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    Mine's under the tank with 57k miles on it but I may have fried it. The voltage runs up to 16 volts when I rev it. I'm going to clean connections to see if it helps. I'm testing it today so I'll see what I come up with. If I did fry it obviously I'd be remounting it someplace else
    #15
  16. jdmetzger

    jdmetzger Lone Wolf

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    Hmm... interesting. That symptom sounds like the "12 volt "hot" source MUST be 12 volt or else you'll see overly high regulator output" warning they mention in the instructions. Hopefully that's all it is for you and cleaning things up will sort it out. 57k is still a pretty good run...

    Oh, and I see you're in Georgia - it gets even hotter there than it does here. Maybe that will help me out, too... I like riding in the cold, anyhow. :D
    #16
  17. bgoodsoil

    bgoodsoil Dare to be Stupid

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    and believe me, it was a rough 57k :D FWIW, the bike still runs and charges fine
    #17
  18. carockwell

    carockwell Been here awhile

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    If you look at every factory bike, the OEM's all mount the regulator up front where the horn would normaly be on an Airhead. On my R80 ST, I had mine mounted under the seat in the battery compartment. My unit fried, but I think it was a connector failure, not excessive heat that did it. Anyway I mounted my second unit up front, directly on the front engine cover. I don't recommend this either because the front cover gets hot when you park. So I still have the regulator bolted to the front cover, but I have insulated the regulator from the cover. That seems to work well. It never gets warm.
    #18
  19. bgoodsoil

    bgoodsoil Dare to be Stupid

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    The horn bracket looks like a good spot. My horn's not very dirty so I think it'd be safe to put it there, tucked up behind the fender. That'd be about the shortest distance between alternator & VR as you can get.
    #19
  20. Airhead Wrangler

    Airhead Wrangler Long timer

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    I mounted mine on an aluminum plate between my rear fender and the battery. I don't have side covers so there's plenty of air flow. No probs at all.
    #20