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Buzzer to stop my motorbike battery running flat.

Discussion in 'Sensors and Actuators' started by Cwodavids, Jul 11, 2013.

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  1. Cwodavids

    Cwodavids

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    Jul 11, 2013
    Hi all,

    Firstly, i have very little electronics experience but do possess a brand new £35 multimeter :)

    Secondly, I fitted a Tomtom Rider GPS to my Yamaha Fazer 600 (60 plate) with a switch (that has a light) half way along the power cable to ensure I don't drain the battery when I am not using it. I would like to fit either a buzzer that activates when the bike isnt running or open to ideas from others as to how I can stop my battery running flat when I forget to turn the switch off.

    Any help greatly appreciated in the form of ideas, advice, links or diagrams.

    Dave
     
  2. davenn

    davenn Moderator

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    Sep 5, 2009
    hi there Dave
    welcome to the forums

    run the system through the ignition switch
    would be the initial obvious answer

    Dave
     
  3. Cwodavids

    Cwodavids

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    Jul 11, 2013
    Sounds great, how do I do that, lol?

    I am not an auto electrician, i know how to wire a plug if that helps :)
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    You find a connection to the ignition that is only powered when the key is on, and you use that.

    It sounds like Acc (Accessory) power is what you're after. It allows the device to be on without a need for the engine to be running (or at least without the ignition powered up).
     
  5. Cwodavids

    Cwodavids

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    Jul 11, 2013
    How do i find a wire that is only powered once the ignition is on? How and where do i physically collect the wires?
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Find the fuse marked ACC and there you are.

    A multimeter will confirm when it is connected to power, check and see if it has power with the ignition key is in appropriate positions.

    This is a bike, right? Do they have such a position on the ignition?
     
  7. Cwodavids

    Cwodavids

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    0
    Jul 11, 2013
    I will have a look, I am guessing its the red (+) wire that needs connecting to the ACC wire? Where do i connect the other wire to?

    Bikes have a similar ignition to a car; its a button to actually start the engine but a ley to turn on ignition.
     
  8. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Cool, assuming -ve earth, then red wire to the ignition and black to ground. Ground is often the chassis. You can use your multimeter to check the voltage between the chassis and the ignition. With the red probe on the acc wire from the ignition (or the fuse) and the black one on the chassis, you should see +12V (or thereabouts).

    Best to connect after the fuse so a fault won't melt wiring on your bike. If the GPS has its own fuse even better.
     
  9. KrisBlueNZ

    KrisBlueNZ Sadly passed away in 2015

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    Nov 28, 2011
    Do a Google image search for Yamaha Fazer 600 wiring diagram. There are lots of hits. Find one that you think matches your bike, and trace the supply voltage from the battery through the ignition key switch, and try to find the matching point on your bike. As Steve suggested, it's probably available on a fuse. Connect your device downstream of the fuse so the fuse will protect it.
     
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