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Thread: adding battery to atc 350x

  1. #1
    ustin666 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    adding battery to atc 350x

    would dis be the way to wire a regulator rectifier to a 350x to add a battery and have dc volt ?
    Attached Thumbnails Attached Thumbnails 350x.jpg  
    86 350x
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    mint 87 250 citation

  2. #2
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    The short answer is no, dat isn't the way.

    This is all just basic Honda wiring stuff off of the top of my head, so if I'm missing anything that is 350x specific, feel free to correct me!

    The two yellow wires on a reg/rec that is designed to work with a full wave stator will be the a/c stator input wires. On your diagram, you have one of these attached to a ground wire, which Honda almost always uses Green wire for, and is in fact the case in this diagram as well.

    Generally if the stator a/c input wires on the reg /rec are not yellow they will be white.

    The stator output wires are the BL/R (black with red stripe) and W (white) wires.

    The G(green) wire should remain intact from the stator to the harness.

    There is no need to ground the battery, or the reg/rec, or whatever is going on there, twice. Ground the frame to the battery, ground the reg rec, done.

    There would be no need to leave the ac regulator connected.



    All that said, never done it, don't know if the 350x needs a battery, don't know if the charging system is up to the challenge, hopefully someone does. The other thing I see is that the a/c output goes to the cdi box, not sure how that would be wired without some further thought.

  3. #3
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    The CDI gets a dedicated power feed directly from the alternator. Leave the CDI circuit alone.

    The AC regulator is only there for the lamps.

    No need for the original AC regulator if you are installing a combo regulator/rectifier. Use the plugs from where the OEM AC regulator was installed. Not sure how the 350x stator / alternator would work with a rectifier/regulator. I've never tried it either. I'm not sure how the bulbs will handle the DC power either, probably not an issue.

    What are you trying to do, by the way? Why add a battery? Are you going to add an electric starter?
    - Frank

    1984 200ES Big Red
    1985 350X (x2)
    1986 350X
    1986 250SX
    1984 Auto-X
    1984 ATC70
    1985 ATC70

  4. #4
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    As they said, eliminate the AC regulator. I have done this on more than a few Honda's now... Main reason most people do this is to make the lighting more consistent regardless of engine speed and also to have lights without the engine running, i assume thats your goal as well?

    I usually get a cheap four wire regulator/rectifier off eBay.

    Edit...

    Had to edit my post looked at it too quickly. Hang on reviewing diagram...
    Last edited by kb0nly; 02-15-2014 at 03:53 PM.
    ---------------------------------------------------------
    1984 Honda ATC200ES "Big Red"
    1982 ATC200E "Hondie"
    1988 TRX300FW "Project Quad" Still in progress....

  5. #5
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    Ok, lets start over here...

    First off as they said, diagram is WRONG. You don't want to touch the Black/Red wire, thats your ignition source coil and has nothing to do with the lighting circuit.

    Now the problem you have with the 350X is they grounded the alternator coil in the engine, so one side of the AC output is on the White wire, the other side is the engine case and frame. The only way i could see doing this is you would have to open up the motor and lift the ground inside so the Green wire coming out is the other side of the coil and its NOT grounded to the engine case. Does that make sense? You want two wires coming off the coil, each side of it.

    Then you could wire it so the Green and the White would go to the Yellows on your new Regulator/Rectifier unit, the Green or Black from the Rectifier/Regulator (some use green some use black) would go to ground, aka the engine/frame and the battery negative, and then the Red would go the battery positive.

    Also make sure you put a fuse inline before AND after the battery to protect everything. You want a fuse so that if you short the output of the regulator/rectifier that it blows to protect it, and you want a fuse after the battery before it connects to the White wire to feed the switch and lights as well.
    ---------------------------------------------------------
    1984 Honda ATC200ES "Big Red"
    1982 ATC200E "Hondie"
    1988 TRX300FW "Project Quad" Still in progress....

  6. #6
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    Here, sorry i'm no artist, but i think this will better explain it... LOL

    Click image for larger version. 

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    ---------------------------------------------------------
    1984 Honda ATC200ES "Big Red"
    1982 ATC200E "Hondie"
    1988 TRX300FW "Project Quad" Still in progress....

  7. #7
    ustin666 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    tanks for the info il try that when i get motor back up and running and let you guys now what happens
    86 350x
    85 125m
    mint 87 250 citation

  8. #8
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    Quote Originally Posted by ustin666 View Post
    tanks for the info il try that when i get motor back up and running and let you guys now what happens
    If it smokes or starts on fire take a video for us.

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