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Thread: Kawi Fuel Vent?

  1. #1

    Kawi Fuel Vent?

    So I finally picked up my 2008 Kawi STX-15F this weekend. They put in a gallon or two of gas and started her up. All was well. It was about a 75 mile drive home. When i got her into the garage i wanted to see how hard it was to open the gas cap from the seated postion.

    When I started opening it I heard a hissing noise and it smelled like gas in the garage. I understand that this was just fuel vapors that had collected and a possible a result of the long drive and the gas spashing around in a near empty tank.

    But isn't this what the fuel vent in the handlebars is for? Can this be a sign that it is kinked?


  2. #2
    jtskir15f's Avatar
    Join Date
    Oct 2007
    Dubuque, IA
    No, mine does it all the time and i had the recall done on my 06'. Just to make sure, you're talking about the vapors the blow out of the tank when you're when you unscrew the gas cap

  3. #3
    Yeah, exactly that, the vapors that blow out of the tank...

    So what the heck does the vent in the handlebars do?

  4. #4
    btldigger's Avatar
    Join Date
    Feb 2007
    lebanon tn.
    You are thinking about it going in the wrong direction. The vent lets air into the tank as fuel level drops. Otherwise you could have a situation where there was a vacume in the tank and the fuel pump would have trouble pulling fuel from the tank. The check valve in the line stops it from venting presure into the air.

  5. #5
    Ah...i see. So positive pressure is OK. And the vent prevents negative pressure by letting air in as gas is used up.

    Thanks everyone.

  6. #6
    darkov's Avatar
    Join Date
    Jul 2008
    wow never toughto of that

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