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Thread: 1972 R75/5 Voltage to Ground Question

  1. #31

  2. #32
    Registered User lmo1131's Avatar
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    Jan 2010
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    Pismo Beach, CA
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    Thanks Josh.

    The "previous" post was seven months ago. Did this problem get sorted out?

    Last mentioned it was looking like a "wiring" problem, and it was previously noted by the OP that the "green/black" wire has melted.

    Lucky for /5 owners, a complete, new, wiring harness is only about a $150 investment vs. $500-650 for the /6 and later models.
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

  3. #33
    Registered User j_withers's Avatar
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    Arrow

    I think the main harness is only $65 for a /5.

    Regardless,
    I found this thread while investigating a possible issue with my /5.
    I posted the link just in case anybody else discovers this thread.

    I too am curious as to if the problem was solved for the originator of this thread.

    I have a completely restored /5 that I just started up for the first time. I am using a Shorai lightweight battery and it died within my first 60 miles. I'm checking over my electrical system to see but I can't find a voltage leak.
    Rotor checks out.
    Diode is a Enduralast diode board and it tests OK.
    Dyna electronic ignition.
    Brushes are OK (about 75% left)
    I did a Rocky Point ignition key replacement instead of the /5 key system.
    All new wiring although I added aftermarket turn signals and tail light.
    I had a bad starter relay that I switched out.
    Voltage regulator seems to be pushing out 13.8V on the revs and 13.2 on the idle.

    I may be fine but just going over the basics to be sure.

  4. #34
    Registered User lmo1131's Avatar
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    You are correct sir. My /5 ref was for the "main harness" + "engine harness" + "sub frame harness" + "turn signal harness" (front)

    Might try another battery. It wouldn't be the first time that a "new" battery was defective...
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

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