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Thread: Bump start

  1. #31
    Standard Member Kojo.Bee's Avatar
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    Re: Bump start

    Help - guys my battery just run flat after not riding for just 4 days!!! The warranty company sent out someone to jump start it but they said they wouldn’t do it unless I sign a disclaimer (That if the ECU burns out...basically they would not be liable)

    Is there problems with ECU when jump starting the bike?

    Its a shame cos I was looking forward to the trackday today at Brands


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  2. #32
    Forum Admin soofsayer's Avatar
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    Re: Bump start

    Not usually a problem, but they are just covering themselves.

    Sounds like your battery is failed if it is fully discharged in 4 days.
    Last edited by soofsayer; 29th August 2018 at 11:15 AM.

  3. #33
    LIFETIME FORUM MEMBER JimmyMac's Avatar
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    Re: Bump start

    Hi Kojo.Bee, as Soofsayer has mentioned the recovery company are just covering themselves in case of any electrical issues that could be attributed to them, hence the disclaimer.

    Any jump start from a large car battery or booster pack could damage sensitive electronics by putting too much current into a circuit.
    Jump starting your bike from another bike is the best way and it will not damage any components on either bike if done correctly.

    First have both bikes close to each other engines off.
    Connect RED lead to +ve on good battery and then flat battery.
    BLACK lead to -ve on good battery and then flat battery.

    Wait a couple of minutes and start engine on good bike, then start engine of flat bike.

    Leave running and connected for 10 minutes and shut off both engines.
    Then remove the cables in the reverse order, i.e. Black leads off first.

    NEVER remove the cables with the engines running as this is what can damage the electronics of any vehicle.

    Hope you get it going and don't miss your trackday.

    JimmyMac
    Last edited by JimmyMac; 29th August 2018 at 11:34 AM.

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  5. #34
    Standard Member Kojo.Bee's Avatar
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    Re: Bump start

    Thanks very much guys. Too late now, they’ve sent it off but I know for next time. And also whilst there I can get them to check if there is a load on the battery because its a new-ish battety and always starts first time without any hesitation so to die out suddenly like that is a bit strange


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  7. #35
    Standard Member scooby's Avatar
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    Re: Bump start

    are you talking about bump or jump start? they are tricky to bump start due to slipper clutch

  8. #36
    Standard Member Kojo.Bee's Avatar
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    Re: Bump start

    Jump Start. apparently it’s relatively common, so those recovery guys in the know would let you know and ask if you want to sign a disclaimer (at your risk obviously)


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  9. #37
    Standard Member cobo's Avatar
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    Re: Bump start

    Let us know how you go and what the issue is.
    Currently having a similar issue with my 2016 and they still can’t find the (seemingly intermittent) fault after 2 weeks at the dealers. FFS.

  10. #38
    Standard Member Kojo.Bee's Avatar
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    Re: Bump start

    Hi Guys,

    So it was the USB charger that was draining the battery. I connected it directly to the battery. Apparently its better to connect it so that its only active when the ignition is turned on. Not sure how to do that though. If anyone knows please let me know. If not i’ll look into it this weekend.



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  11. #39
    Forum Moderator Oli's Avatar
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    Re: Bump start

    @Kojo.Bee if you PM @Stephen he can supply you with a Can-Bus accessory lead to charge peripherals.

    I have one for my iPhone and it works very well


    - Oli

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  13. #40
    Standard Member Kojo.Bee's Avatar
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    Re: Bump start

    Thanks


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    Oli

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