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How long should bike run on battery alone?

  1. #1
    High maintenance priss
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    How long should bike run on battery alone?

    OK, I'm trying to get this Suzuki GS of mine running. Charged the battery w/ a tender, started second try. Bike ran for 20 sec then died. Then 10 sec, then a couple seconds. Then wont start -> battery already dead.

    So I know the battery can't hold much of a charge. I figure I need to test the R/R and Generator to see which component is shot. I've got an Optima Yellow Top auto battery that I plan to use to keep the bike running so I can run a few electrical tests. How long should the bike run off of the battery alone?

    PS - I started this project by cleaning and rebuilding carbs (didn't separate the bank, just replaced all jets, needle valve, idle screws, set float height, etc...). There doesn't appear to be a fuel delivery issue (carbs leaked fuel...another story tho). Motor sounded good for the short time it did run. Figured it should keep running once started -> this is why I'm checking charging system.

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  2. #2
    Soul Rider Paul_E_D's Avatar
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    How long should bike run on battery alone?

    A bike should run for at least an hour on a good bike battery alone. That's under load.

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    Paul_E_D


  3. #3
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    How long should bike run on battery alone?

    Cool, didn't know it would run for that long. I guess the current battery is really toast. It has a mfr. date of '06, so I'm guessing that this bike has been deep-discharging the battery for a while.

    Thanks.

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  4. #4
    WoW Josephd14's Avatar
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    How long should bike run on battery alone?

    It will run till the Battery dies...

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  5. #5
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    How long should bike run on battery alone?


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  6. #6
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    How long should bike run on battery alone?

    My race f4i ran for 35 minutes at race pace. it had no charging system.

    Your reg/rec is fucked (in my humble opinion)

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  7. #7
    Member Mad Max's Avatar
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    How long should bike run on battery alone?

    Unplug the headlight if you want to get a little more life out of it.

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    Christopher Aho

  8. #8
    Super Moderator beet's Avatar
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    How long should bike run on battery alone?

    It depends on how good your battery is, how much your reving. The more you spin the quicker it will die.

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  9. #9
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    How long should bike run on battery alone?

    Quote Originally Posted by Mad Max View Post
    Unplug the headlight if you want to get a little more life out of it.
    Headlight has an on/off switch. Its an OLD GS.


    Quote Originally Posted by beet View Post
    It depends on how good your battery is, how much your reving. The more you spin the quicker it will die.
    Just idling & 5k for a short bit in order to test alternator output and R/R.

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