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Bypassing your EHC

Discussion in 'How-To' started by cdogg556, Aug 31, 2015.

  1. cdogg556

    cdogg556 Guru

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    Well, got the word that my EHC is good, but there were some major electrical failures, so Curtis is wiping it clean and re-loading it and I am checking all my wiring for bad connections, as you can see the solenoid connection was not good, anyway I am gonna re-install my EHC and change one other thing, I don't want to be at the mercy of the EHC anymore, so I am gonna do what I did to my 05 Bulldog some years ago, I am bypassing the EHC and powering my ignition right from the battery! Then I am installing a slam button so I will always be able to start it! Even if the EHC fails, I will be able to get home, anyway here's how I am doing it, the toggle switch is replacing the old key switch to power the lights, speedo, etc....





    First you need to pic up a few supplies![​IMG]
    I removed the battery box so I could access the starter, if I wasn't installing the slam button I would not have done this.[​IMG]
    Next I have been checking all my connections with my Multi-Meter and visually, looks like one of the terminals on the starter was damaged and had a lot of corrosion on it![​IMG][​IMG]
    This is how it should look![​IMG]
    I removed the damaged one and hopefully Curtis can get me a new one or I am gonna have to figure something out, maybe the harley shop might have something similar?[​IMG]
    Ok, enough of the starter b.s., lets get on to the "old school wiring!" Haha! Here is the toggle switch after I mounted it under my coil, I used a thick piece of plasted to mount it, did not want to use anything that might conduct elec., probably don't matter but that's what I had around the house to use, I know it's fucking "blue" Ker! Lol![​IMG]
    The wires are connected to the original key switch wires.[​IMG]
    You see the new key switch is installed also, that thing fit perfectly Ker! Just like it was made for the bike![​IMG]
    Next I crimped some connectors to the wires so I could remove the coil cover without cutting wires![​IMG][​IMG]
    Now I ran the two wires up the backbone and out were the original wires are and put the same connectors on the ends.[​IMG]
    A litte shrink tubing cleaned things up nicely![​IMG]
    Next I mounted the coil cover![​IMG]
    That key looks good don't it Ker! And it's cheap! As you can see the toggle switch is not visible unless you really get down and look up under there, but is really easy to access.[​IMG][​IMG][​IMG]
    Ok, that's done, I am ready to head to the battery box and do a little work, here is the other end of the postive power I am pulling directly from the battery, that's a 15 amp fuse in there also, see the wire shield I put on there, it was the old VR shielding that I saved, works and looks great!
    [​IMG]
    [​IMG]
    Well, that's it for now until my ehc and slam button show up! Also just for shits and giggles I did a test on all the connections with the M.M. and everything was good!
     
    chubs, TapioK, BWG56 and 1 other person like this.
  2. francoblay1

    francoblay1 The Spaniard

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    STICKY !!!!!!! :old2:

    :cheers:
     
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  3. BWG56

    BWG56 Guru

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    Super job Wanker and you even managed not to show the stand the bike is on AGAIN
     
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  4. cdogg556

    cdogg556 Guru

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    [​IMG] Ker! I did manage to leave it out didn't I, but I gotta tell ya, I am glad I built it! upload_2015-8-31_10-33-50.jpeg
     
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  5. paleskin

    paleskin Active Member

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    Nice work! Appreciate the effort to document your process with pictures.
     
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  6. Billy the kid

    Billy the kid Well-Known Member
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    :old2:Nice
     
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  7. FrankBDPS

    FrankBDPS Well-Known Member

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    Nice job. Bill will love it!
     
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  8. woodbutcher

    woodbutcher Mr. Old Fart member #145
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    stuck
     
  9. BadDawg Bill

    BadDawg Bill Well-Known Member

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    You're right. He's doing nice clean work. I'd of gotten rid of the ECH also but this setup will work to get home. Good job buddy!
     
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  10. cdogg556

    cdogg556 Guru

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    Thanks Bill! Now I know how the contestants on American idol felt when Simon Cowell said they did good! Lol!:D
     
  11. MossBerg590

    MossBerg590 Active Member

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    Just curious because I'm not exactly follwing, is the toggle switch spliced into the key switch and then ran to ignition module?
     
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  12. francoblay1

    francoblay1 The Spaniard

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    Thank God I am not the only one!!!!!! I was starting to worry...


    Here my questions on a PM to John:

    Well, I just readed (twice) again..... Nope!!! I have not a clue what the F you've done there... you talking about "wires"...

    1. what wires?
    2. new, old?
    3. where they come from and going to?

    Sorry..... but not being done much electrical stuff before I have no idea of what wires you are referring to. you just mention wires, but there are dozens of wires.... LOL
     
  13. cdogg556

    cdogg556 Guru

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    No they are two separate systems, the toggle switch is replacing the original key switch, it only powers the ehc, the new key switch powers the ignition only, what I did Tyler is find the power wire comming from the ehc and going to the ignition and the I cut it and took the end coming from the ehc and folded it back and srink wrapped it, the took tbe other end that was going to the ignition and ran the new power wire to it that was coming directly from the battery via the new key switch!
     
  14. francoblay1

    francoblay1 The Spaniard

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    I've been talking to John via PM but I still don't get it..... Its like when you ask for directions and the person who is giving directions to you is assuming you are a local and you know all the landmarks! To give directions is not easy either....

    John gave me permission to post his Diagram... it might help someone.

    [​IMG]
     
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  15. FrankBDPS

    FrankBDPS Well-Known Member

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    It might help if we could see it!
     
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  16. francoblay1

    francoblay1 The Spaniard

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    We can see it. I will try a different format for you...

    Now?

    Bypassing EHC.jpeg
     
  17. FrankBDPS

    FrankBDPS Well-Known Member

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    Much better.
     
  18. FrankBDPS

    FrankBDPS Well-Known Member

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    So basically you have hot wired you're ignition system with the new key switch and every thing else is powered by the toggle switch and are still controlling the starter selinoid with the ehc. Is that correct?
     
  19. BWG56

    BWG56 Guru

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    :yesnod::yesnod:
     
  20. BWG56

    BWG56 Guru

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    Franco, step 1, take the existing key switch wires and replace it with a toggle switch and relocate the toggle switch.
    2, cut the wire from the ECH to the ignition module
    3. new wire with inline fuse from the battery to key switch and then a wire from key switch to the wire that you cut to ignition
     
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