Author Fuel gauge problem  (Read 694 times)

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  • Offline Dodgyrog   gb

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    Offline Dodgyrog

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    Fuel gauge problem
    on: 17 September, 2022, 05:18:19 pm
    17 September, 2022, 05:18:19 pm
    Hi all,
    I bought a 2011 write off (cat N) a few week ago and Iím working through the Ďrestorationí with some good results. I do have one strange problem. When I got the bike it showed half a tank on the gauge, took it out for a short test run and ran out of fuel (gauge still showing half a tank) I filled the tank to the brim and the gauge went up to full. Then I ran the bike for another 50 miles and the gauge still shows full, it seems it will register an increase but wonít drop  back as I use the fuel.
    The bike may have been standing for a while but canít get my head around the problem. Im guessing Iíll have to drain the tank and strip out the pump/sender unit but would really appreciate any help on what the problem might be.
    Cheers,
    Rog
    Tiger 1050 2011
    Rocket 2020

  • Online gavuk   gb

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    Re: Fuel gauge problem
    Reply #1 on: 17 September, 2022, 05:48:24 pm
    17 September, 2022, 05:48:24 pm
    Hi dodgyrog (love that name, I'm sure there is a story behind it).

    I no longer have my 2010 that I had for 5.5 years but still look in from time to time as this is a friendly forum.

    From memory the fuel gauge is erratic. It can read full when it's not and when full won't increase the amount of bars showing. Eventually it will read correctly and the issue starts again.

    I learned to live with it.

    Others may have a much more technical answer.

    Good luck getting your tiger working again from its cat N status. They are great bikes. I miss a triple engine.

    Gav

  • Offline Sidewinder   gb

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    Re: Fuel gauge problem
    Reply #2 on: 17 September, 2022, 07:09:57 pm
    17 September, 2022, 07:09:57 pm
    Bear in mind there is no direct connection from sender to dash, it's all done via the ECU.  The bars you see are a calculated estimate based on what the various sensors are telling the ECU about how the engine is using fuel.

  • Offline Dodgyrog   gb

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    Offline Dodgyrog

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    Re: Fuel gauge problem
    Reply #3 on: 18 September, 2022, 10:14:51 am
    18 September, 2022, 10:14:51 am
    Thanks for the replies guys, my Rocket gauge is a little bit erratic so Iím used to a little bit of fluctuation but this is way off, definitely not right.

    I have a Dealertool for the Rocket, it sounds like it might be worth paying the extra to check out the Tiger and see if there is a fault code.

    I thought the sender might have some crap on it or corroded and may need cleaning, is that a possibility?
    Cheers,
    Rog


     
    Tiger 1050 2011
    Rocket 2020

  • Offline Sidewinder   gb

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    Offline Sidewinder

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    Re: Fuel gauge problem
    Reply #4 on: 18 September, 2022, 10:51:27 am
    18 September, 2022, 10:51:27 am
    IIRC there was a bulletin about cable tying one of the wires of the unit so it's more out of the way.  Not sure why exactly.

  • Offline Dodgyrog   gb

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    Offline Dodgyrog

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    Re: Fuel gauge problem
    Reply #5 on: 19 September, 2022, 05:28:22 pm
    19 September, 2022, 05:28:22 pm
    Thanks for that Sidewinder, Iíll double check that when I strip it down.
    (Ran the Dealertool fault code checker and it didnít find any issues)
    Tiger 1050 2011
    Rocket 2020

  • Online ZuluTiger   us

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    Re: Fuel gauge problem
    Reply #6 on: 19 September, 2022, 05:54:18 pm
    19 September, 2022, 05:54:18 pm
    Once you have it out, you can put an ohm meter on the connections and verify that it changes linearly as the carbon contacts are swept. Let us know...

  • Offline Dodgyrog   gb

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    Offline Dodgyrog

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    Re: Fuel gauge problem
    Reply #7 on: 20 September, 2022, 12:09:00 pm
    20 September, 2022, 12:09:00 pm
    Thanks ZuluTiger, Iíll do that. It will be a while as Iím away for a couple of weeks on the Rocket  🚀
    Tiger 1050 2011
    Rocket 2020

  • Offline Dodgyrog   gb

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    Offline Dodgyrog

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    Re: Fuel gauge problem
    Reply #8 on: 27 September, 2022, 12:31:51 pm
    27 September, 2022, 12:31:51 pm
    Just a quick update, the fuel gauge is now working! Iíll keep an eye on it and see what happens 👍🏼
    Tiger 1050 2011
    Rocket 2020

     



    reconstruction