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  1. #1
    CB750 New Member peterdancy's Avatar
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    need help desperatley!!!!!!!

    I have 1974 CB750 Honda custom chopper, I picked up second hand. There was no wiring harness, it has bare minimum wiring. the rectifier, the voltage regulator and the starter solenoid is all located in a hand made control box. Its all ran thru toggle switch and a push button start with no key ignition. When I obtained the bike, the box was a mess. I ran basic wiring and I think I made a mistake by running a constant power lead to a switch and the ignition coils to the same switch. Need to know where to run the positive lines from my ignition coils?????? any and all help would be greatly appreciated...im at a total loss Click image for larger version. 

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ID:	9037Click image for larger version. 

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ID:	9038Click image for larger version. 

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ID:	9039 this is the box that the voltage regulator rectifier and starter solenoid are mounted in
    Last edited by peterdancy; 07-04-2019 at 08:39 PM.

  2. #2
    CB750 Guru amc49's Avatar
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    The coils would likely be wired to the OPPOSITE side of the same switch if you mean they have power all the time to run battery down.

    We get you have a problem but until you state what it is, kind of hard to read your mind.

  3. #3
    CB750 New Member peterdancy's Avatar
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    I have a constant power supply from battery running to a switch at which the coils are on the other side of switch so they have a power supply but they seem to run the battery down am I wrong for thinking that they kill the battery? this is my first project and I'm at a loss there's is nothing returning the charge to battery.

  4. #4
    CB750 Guru amc49's Avatar
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    The 'B' position on the voltage regulator connects to the coil power attachment point, it returns charge to the system. He used a red wire, it is B for black originally.

  5. #5
    Moderator dirtdigger's Avatar
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    Can you draw a picture of how you have the wiring then post it here? It is so hard to diagnose wiring issues without being able to see the wiring.

  6. #6
    CB750 Guru amc49's Avatar
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    Need to do something, that is a mess there and needs to be completely torn out and start over.

  7. #7
    CB750 New Member peterdancy's Avatar
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    Click image for larger version. 

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ID:	9041 here's a picture of the wire box

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