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Help GSF 250 - carburetor hosing

Discussion in 'Suzuki 250cc In-line 4's' started by Kr0p, Sep 10, 2021.

  1. Kr0p

    Kr0p Active Member

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    Hello,
    We are working on properly understand the carbs in GSF 250 and we are missing info what exactly do no. 12 hoses vent. I believe the hoses are placed somewhere between airbox and fuel tank but why this vent is there?



    If anyone knows, it would be very appreciate to have an explanation of this.

    Regards,
    Kr0pi carbs.png
     
    Kr0p, Sep 10, 2021
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  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Green would be the diaphragm vents and blue are the float bowl vents
     
    GreyImport, Sep 10, 2021
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  3. Kr0p

    Kr0p Active Member

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    Thanks for fast reply - would you then know what is the thingie in the picture below?
    upload_2021-9-10_9-40-21.png
     
    Kr0p, Sep 10, 2021
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  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    GreyImport, Sep 10, 2021
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  5. Kr0p

    Kr0p Active Member

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    Aaa i think I understand it now - this is connected to the diaphragm vent of carburetor - probably so only clean air gets in. Crankcase breather is connected directly to the airbox. And the float bowl vents are not connected to any filter whatsoever. Thanks for the points from your side :)
     
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    Kr0p, Sep 10, 2021
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  6. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    On the Yamaha FZR250 the bowl vents just hang off the airbox

    IMG_3849.JPG
     
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    GreyImport, Sep 10, 2021
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