Efi Throttle Body Synchronization

Discussion in 'Bonneville' started by Guillermo salinas, Oct 7, 2019.

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  1. Guillermo salinas

    Aug 17, 2019
    49
    18
    Azusa
    How do I sync my throttle bodies? What tool do I need? What specific hardware should I buy for my 2014 triumph Bonneville t100?
     
  2. Callumity

    Callumity Elite Member

    Feb 25, 2017
    1,932
    750
    Nr Biggar
  3. Guillermo salinas

    Aug 17, 2019
    49
    18
    Azusa
    My bike has fuel injectors so this won't work
     
  4. steve lovatt

    steve lovatt Something else
    Subscriber

    May 12, 2014
    5,997
    1,000
    Winchester
    A laptop, Tune ECU, a cable and away you go! :cool:
    20180207_142348.jpg 20180207_142341.jpg

    You can see them balanced in the second picture.
     
  5. Eldon

    Eldon Noble Member

    Nov 14, 2018
    1,236
    450
    North Yorkshire
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  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
    1,932
    750
    Nr Biggar
    You can do it either way.......

    Yes, the EFI bikes have their own built-in vacuum gauges - the MAP sensors (Manifold Absolute Pressure) which adjust fueling by sending their vacuum signals directly to the ECU. This is what TuneECU reads

    However the adjustment itself is still mechanical at the throttle mechanism. You have a little spring-loaded screw between the throttle bodies - normally marked with a dab of yellow paint. With a diy manometer you can achieve just as good a result. ATF is viscous enough not to flutter as coloured water (juice?) does.
     
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  7. Rudeboy

    Rudeboy Senior Member

    May 2, 2017
    313
    113
    Bristol
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