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Thread: negative earth battery terminal noob question....

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    negative earth battery terminal noob question....

    Hi again.. noob question as bike electrics are a mystery to me.
    Okies neg earth on sporties is (on mine anyway) tenuous... At the moment i have, over and above the standard attached earth leads, the Sat nav, heated clothing, air horn and battery tender. An extra 4 wires.
    This makes keeping the negative battery bolt tight enough a bit of a monthly pain, especially as the said bolt has a captured standard washer, not a serrated or split locker.The live battery terminal doesn't seem to need as much tending.

    Do you think soldering the ends of these 4 leads together and crimping them to one eyelet is ok electrically speaking? I was informed recently that best practice is 2 cables to each terminal is best. And of coarse would make keeping that Negative battery bolt tight much easier.
    What do you think?
    If okies i would also do the live wires
    Many thanks.
    Last edited by howo; 23-06-2019 at 12:48 PM.
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    Re: negative earth battery terminal noob question....

    As far as I can see, the battery is earthed to the frame, so any component can be earthed to frame at any convenient point. Positive feed comes through the wiring loom, but it may be possible to share the positive feed with similar components.

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    Re: negative earth battery terminal noob question....

    As Cab said, the frame is earth/negative, there should also be an earth wire via the headlight to the fork clamp and the handlebar risers.
    Use the most convenient point nearest each component, preferably with a dab of contact grease.

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    Re: negative earth battery terminal noob question....

    Thanks for the suggestions.
    So not a good idea to put 4 leads to one eyelet then attach that to the battery terminal then? As all the wires are already there.
    certainly I will go to the trouble of searching out and attaching all 4 wires to different parts of the bike or trying to find a bolt in the frame around the battery area if I need to. But do I need too?
    appreciate the reply’s.
    Last edited by howo; 24-06-2019 at 11:55 AM.
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    Re: negative earth battery terminal noob question....

    I used the other end of the battery earth cable where it bolts to the frame. Easier to get to and will take two eyelets easily.
    Time out of mind

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    Re: negative earth battery terminal noob question....

    Your Sporty's a rubbermount isn't it? If you haven't already replaced it, do so with a COPPER cored lead which any decent electrician can make up for you. Have it made about two inches longer than the stock one, makes battery removal/replacement (which to my mind is the primary cause of loose leads) so much easier.
    Much less involved.....

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    Re: negative earth battery terminal noob question....

    Quote Originally Posted by kevscrivener View Post
    Your Sporty's a rubbermount isn't it? If you haven't already replaced it, do so with a COPPER cored lead which any decent electrician can make up for you. Have it made about two inches longer than the stock one, makes battery removal/replacement (which to my mind is the primary cause of loose leads) so much easier.
    Yeh thanks Kev, I’ve already done that. I think I read it in one of your posts a while back. Dam good advice..
    Cheers.
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    Re: negative earth battery terminal noob question....

    Quote Originally Posted by El Hombre View Post
    I used the other end of the battery earth cable where it bolts to the frame. Easier to get to and will take two eyelets easily.
    on my bike the other end of the earth is on the crank case the off side behind the starter motor. I have tried attaching earths on the engine but the vibration eventuality metal fatigue’s through the wire. it’s a rubber mount.
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    Re: negative earth battery terminal noob question....

    Okies as no one has said it’s a bad idea, or can think of reasons not to do it I’ll solder all four together and attach it to one large eyelet and put tha back on the terminal. See how it goes. Cheers all.
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    Re: negative earth battery terminal noob question....

    At least if you get a dodgy earth it won't be hard to find!
    Time out of mind

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