Buzzing Noise Under The Tank

Discussion in 'Speed Triple' started by Linx, Apr 4, 2020.

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  1. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
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    Stratford Upon Avon, UK
    #1 Linx, Apr 4, 2020
    I turned on the ignition today to move the bike and noticed a strange electrical type buzzing noise. Bike starts OK and no engine light on. The noise stops a couple of seconds after the ignition is turned off. I haven't lifted the tank yet to see exactly what is making the noise. It hasn't been run for a couple of months but didn't do it the last time it was turned on. 2018 RS. Any ideas?
     
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  2. Gladtobebackontwowheels

    Gladtobebackontwowheels Noble Member

    Nov 23, 2019
    398
    393
    Dover. UK
    #2 Gladtobebackontwowheels, Apr 4, 2020
    Have a look inside the fuel tank with the bike running, if the fuel is swishing about it could be a split fuel hose meaning that the pump is struggling to keep enough pressure.
     
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  3. Gladtobebackontwowheels

    Gladtobebackontwowheels Noble Member

    Nov 23, 2019
    398
    393
    Dover. UK
    #3 Gladtobebackontwowheels, Apr 4, 2020
    He said it's doing it all the time the bike is running.
    Well actually he didn't but it sounds like that's what he meant. :)
     
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  4. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
    93
    Stratford Upon Avon, UK
    #4 Linx, Apr 4, 2020
    It's not the fuel pump. I can here that prime and then stop. It's more of an arcing sort of noise. I presume it is still doing it with the engine running but the engine drowned it out. I'll lift the tank later to see if I can find what is actually making the noise. The bike has only done 2500 of which I have done about 100. I've had the ignition on several times but not heard this noise before.
     
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  5. Gladtobebackontwowheels

    Gladtobebackontwowheels Noble Member

    Nov 23, 2019
    398
    393
    Dover. UK
    #5 Gladtobebackontwowheels, Apr 4, 2020
    What about the IACV stepper motor? That operates for a few seconds after the ignition is switched off.
     
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  6. SprinterII

    SprinterII Noble Member

    Mar 27, 2020
    642
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    #6 SprinterII, Apr 4, 2020

    New bike nerves?
     
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  7. dilligaf

    dilligaf Guest

    #7 dilligaf, Apr 4, 2020
    Wasps nest :eek:
     
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  8. TEZ 217

    TEZ 217 Crème de la Crème

    Mar 6, 2016
    3,152
    1,000
    south shields
    #8 TEZ 217, Apr 4, 2020
    Last edited: Apr 4, 2020
    Gee it could be BEE's :mad:
    or the -
    Bee Gee's :cool:


    :D:D:D:D:D:D:D:D:D:D:D
     
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  9. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
    93
    Stratford Upon Avon, UK
    #9 Linx, Apr 4, 2020
    Err... No.
    It seemed to be under the airbox. Maybe from the electrical black box bolted to the back of the airbox(photo taken) or from the TPS area (photo taken). So I unplugged the TPS connector and sure enough the buzzing stopped. Reconnected it and still no buzzing but now has an error on the dash and the bike won't start :(.

    IMAG1256.jpg

    IMAG1255.jpg

    IMAG1254.jpg
     
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  10. Gladtobebackontwowheels

    Gladtobebackontwowheels Noble Member

    Nov 23, 2019
    398
    393
    Dover. UK
    #10 Gladtobebackontwowheels, Apr 4, 2020
    Hmm, the TPS is only like a potentiometer, there's no motor or anything. You might have to reset the TPS to get the bike to start. Do you have TuneECU?
     
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  11. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
    93
    Stratford Upon Avon, UK
    #11 Linx, Apr 4, 2020
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  12. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
    93
    Stratford Upon Avon, UK
    #12 Linx, Apr 4, 2020
    Yes throttle seems OK. I just rode it round the block (about a mile) and feels fine. Engine light still on. Still making the noise when the ignition is on. I'm hoping to get a reply from JChimpo. It's still under warranty. So if need be I can put it in the shop, if/when they are open.
    I don't have ECUTune or DealerTool yet.
     
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  13. Gladtobebackontwowheels

    Gladtobebackontwowheels Noble Member

    Nov 23, 2019
    398
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    Dover. UK
    #13 Gladtobebackontwowheels, Apr 4, 2020
    If it's the same as my bike, the engine light will go off after 3, (I think), heat/cool cycles.
    Is it FBW throttle or cable?
     
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  14. JChimpo

    JChimpo New Member

    Feb 8, 2020
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    3
    New Jersey
    #14 JChimpo, Apr 4, 2020
    I haven't resolved it yet, the noise is still there, but the bike runs great. I'm just curious to know why it started out of the blue. By the way once you disconnect the TPS connector you will get an engine light error and will need an ODB to clear it. I cleared mine and the engine light has not returned.
     
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  15. SprinterII

    SprinterII Noble Member

    Mar 27, 2020
    642
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    #15 SprinterII, Apr 4, 2020
     
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  16. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
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    Stratford Upon Avon, UK
    #16 Linx, Apr 4, 2020
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  17. Linx

    Linx Well-Known Member

    Mar 14, 2020
    198
    93
    Stratford Upon Avon, UK
    #17 Linx, Apr 4, 2020
    FBW. Seems to be servo noise.

    I do have ElmScan5 which I use on my car. Could I damage the bike if I connect a code reader to the OBD2 socket that is not TuneECU or DealerTool?
     
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  18. joe mc donald

    joe mc donald Joe
    Subscriber

    Dec 26, 2014
    15,306
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    slough / burnham
    #18 joe mc donald, Apr 4, 2020
    Linx.
    You are worrying over nothing. They all buzz and hiss away. My 2018 Bonnie does it all the time but runs superbly. The dash lights three 12minutes runs or rides will clear those when the setup sorts itself out again. Just ride the bike and enjoy. Worry when it stops.
    Regards
    Joe.
     
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  19. BigCLM

    BigCLM Senior Member

    Nov 30, 2017
    1,018
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    San Rafael, CA
    #19 BigCLM, Apr 5, 2020
    Totally normal. Just the electric fuel pump running. (Without that noise the bike won't run!)
     
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  20. BigCLM

    BigCLM Senior Member

    Nov 30, 2017
    1,018
    243
    San Rafael, CA
    #20 BigCLM, Apr 5, 2020
    The fuel pump is not just priming, but also running continuously. Noise is totally normal.
     
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