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Thread: Sl 780

  1. #1

    Sl 780

    I have a 96 Sl 780, the cylinders flooded with gas on the day I went to put it the water, I dried them out and the carbs with compressed air. The machine then worked fine for the first ride, but when I went for a second a few hours later the cylinders seem flooded again.

    Any idea on how to solve this.

    Thanks

    Ekmols


  2. #2
    Home grown engineer, and professional tinkerer. 2 Strokin' Polaris's Avatar
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    Is this happening in all 3 cyls. or just one? Could be the jet body assembly with a leaking check valve inside the diaphram side of the carb.

  3. #3
    Home grown engineer, and professional tinkerer. 2 Strokin' Polaris's Avatar
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    By the way, welcome to the Hulk.

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Welcome to the Hulk

    Excess air pressure inside the fuel tank is one way for fuel to flood the engine.

    Inspect or replace the fuel tank vent check valves. The one leading from tank to outside the hull may be stuck closed. Should open with only a couple of PSI pressure.

    Are you leaving the fuel selector valve in the ON position even when the engine is not being used?

    One of the reasons for the selector valve having an OFF position is to prevent fuel from forcing its way through the carbs into the engine. When not riding the ski, turn the fuel valve OFF

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by K447 View Post
    Welcome to the Hulk


    One of the reasons for the selector valve having an OFF position is to prevent fuel from forcing its way through the carbs into the engine. When not riding the ski, turn the fuel valve OFF
    Welcome to the Hulk.

    Exactly why it's there. ^^^^^^^^^

  6. #6

    Smile Thanks guys for all the help

    Really glad I joined the hulk, all great replies. I will check th event tubes aand make sure I turn the selector to the off postition.
    All three cylinders were filling up with gas.
    I will not be riding until this week end so will psot next week.

    Thanks again

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