Agressive throttle pickup issue - BMW F800 Riders Forum & Registry



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  1. #1
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    '14 F800GT
    Hi all.
    I'm new here, so let me first just say how wonderful it is to have this great platform to read, share and consult with so many experienced riders.

    I have a new (to me) 2014 F800GT that I believe has some kind of a throttle related issue.
    The throttle pickup from 0 is quite aggressive and results in kind of a nasty 'kick-in-the-back' push forward.
    When I wind open the throttle extremely lightly I can overcome it and make a smooth pickup, but I really have to concentrate in order to nail it

    Has anyone experienced this? if so - how did you solve it?

    thanks a million!
    Dror

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  3. #2
    Richard230's Avatar
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    I suspect that many people might say "they all do that, sir". That is common with many older fuel injection systems. My 2009 F650GS (the same engine as you have) does the same thing and I have managed to live with it. I had similar issues with my 2000, 2002 and 2007 BMW R1200R models. But I will say that my latest 2016 BMW R1200RS has a much smoother throttle response, so the fuel injection systems are improving likely because of both experience with the technology, faster fuel injection computers with more complicated programs, along with improved intake tract hardware and designs. It is tough to beat an old carburetor when it comes to smooth throttle action when it is properly designed and jetted. But they can no longer meet current emission regulations when used on most engines.
    Richard - Current bikes: 2016 BMW R1200RS, 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior. 

  4. #3
    guenner's Avatar
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    '17 F700GS
    One thing you can try is to re-calibrate the throttle position sensor. It may not change your 'throttle response' issue. But it is easy to do. Look at this thread.
    2017 F700GS - I wish she had a drive shaft. 

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  6. #4
    Points: 11,872, Level: 75

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    '10 F800 ST
    it takes some getting used to the light & reactive throttle. You have to learn how to feed the revs/clutch out when initially pulling away/riding at low speeds.
    BMW F800ST, 2010, Black, Fuzeblock, Sat Nav, BMW Tank Bag, Givi Touring Screen, Denali Spotlights, Denali CANSmart, Wunderlich Crash Bars, 62K Miles & counting 

  7. #5
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    Do a search for AF-XIED. It helps with various things, including throttle response and surging.

    https://sales.nightrider.com/AF-XIED...F800_p_62.html

  8. #6
    Points: 52, Level: 1

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    '14 F800GT
    Hi all.
    I wish to thank you for your replies. I think I learned quite a lot already.
    Mainly, I think that I've been comparing the bike's behaviour with the bike it replaced: a 2016 R1200GSA that I had and loved for 2 years before replacing it with the F800GT.
    Truth be told - it was just far too big and heavy for my daily usage, but it was also electronically governed and faaaaar more technologically advanced than the bike that followed.
    It's not that the GSA is super smooth, but with it's ride-by-wire throttle and other tech it felt smooth as silk in comparison with the GT.

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  10. #7
    notacop is offline The original Schwartz Wald Troll
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    '04 DL-650A V-Strom
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    '13 G650GS (Single)
    I didn't have a problem with my 08 ST but others complained about a sensitive throttle. The new 2021 F750GS is fly by wire and it seems very sensitive to me. I'm trying to get used to it.

  11. #8
    Melbourne, Australia IanA is offline F800Riders.org Supporter
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    There has been a huge amount of discussion on this topic over the last, say, 12 or so years! I felt it was an issue certainly with my '12 ST and even to a lesser degree with my '19 GT, one of the last built, ride by wire and all!
    I found that each of the following measures produced an incremental improvement, not necessarily in any order.

    1.Throttle position sensor (TPS)reset.
    Key ON
    Throttle fully open
    Hold open for 3 seconds
    Return to closed for three seconds
    Repeat 4 times
    Turn key off for 15 seconds Start motor.

    2. Ensure cable is lubricated and running freely.

    3. Consider increasing grip diameter using " Grip Puppies" or similar foam grip add-ons. This helps to reduce the throttle sensitivity.

    4 Consider installing mixture enrichment device such as AF-XIED. I got significant improvement using BoosterPLug on both bikes. (www.boosterplug.com )

    Hope this is some help - worked for me!

    Cheers, Ian A

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  13. #9
    Lighning's Avatar
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    I feel like I am one of those old school riders who mostly just adjusts to the bike and not the other way around, except for comfort mods. On cars I do tunes but on bikes? I was taught this back in 1982: “If you are always hitting the red line you need a bigger bike.” Now that motorcycles are so much lighter it is even more true as most people can handle a liter bike or bigger, when back then they were tanks.
    2013 F800GT
    San Diego CA 

  14. #10
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    I find the best way to get precise (read: gentle) throttle is to do the "rest 2-fingers on the brake lever" hand position. It stabilizes the hand for an easier and smoother rolling motion of increasing the throttle.
    2013 F800GT 

  15. #11
    Points: 34, Level: 1

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    So its the same procedure to re-calibrate the throttle position sensor for the R12RT, F700 GS and the F800 GS?

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