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  1. #1
    I'D RATHER SWEAT THAN SHIVER hyoctane23's Avatar
    Join Date
    May 2007

    Waaaaaay too much fuel

    I tried to start the 780 this weekend after it has been sitting for a while. For some reason, when I crank it, I can literally see fuel flowing out of the carb and down the throat. After it sat overnight, I looked and the carbs are completely full of fuel, which means I'm sure the crankcase is full of fuel as well. Any ideas why? Maybe a check valve is broken in the carbs?

  2. #2
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canada
    Fuel selector valve was left in the ON position?

    Another poster had a similar problem recently, turned out to be a stuck fuel tank vent valve, which pressurized the fuel tank when it got warm, forcing gas through the carbs into the engine.

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Cleveland OH
    Carb needles stuck open?

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