Home Forums General Karting Discussion Fuel tank. To vent or not to vent.. that is the question!

This topic contains 1 reply, has 2 voices, and was last updated by  Roger Miller 2 years, 5 months ago.

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  • #49805

    John Starkweather
    Participant

    You read the title hah, Ive got a YZ125 engine and bought a Fuel tank that has the option of the a fuel tank vent or not and I cant find any information on when to use a vent. Heres the fuel pump on the kart;

    #49806

    Roger Miller
    Participant

    What you have there is called a pump-around setup – its two pumps and one pump sends fuel to the carb, and one pump evacuates excess fuel from the carb and sends it back to the tank – with a whole heck of a lot of air.  You must vent the tank, and you may need a bigger vent or two vents to not pressurize the tank.

     

     

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