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Fuel leaking from driveshaft boot!

Discussion in 'XJ Technical Chat' started by jymmajama, Mar 14, 2011.

  1. jymmajama

    jymmajama New Member

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    :x please help!! i own a 82 Yamaha Maxim xj750 and i have had it stored for the winter. i started it up today and fuel started to dump out the driveshaft boot. what is the problem?? how do i fix it??
     
    jymmajama, Mar 14, 2011
    #1
  2. BillB

    BillB Active Member

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    You should check your gas lines and petcock when the flow starts.

    Im thinking you are seeing the bottom of the water fall. It is probably originating much much higher.
     
    BillB, Mar 14, 2011
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  3. MiCarl

    MiCarl Active Member

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    The air box drains right above that boot.

    Look for a stuck carburetor float pouring fuel into the air box.
     
    MiCarl, Mar 14, 2011
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  4. TIMEtoRIDE

    TIMEtoRIDE Active Member

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    You may want to check your oil for fuel dilution. Gas in oil is NG for bearings, cams, and piston skirts.
     
    TIMEtoRIDE, Mar 14, 2011
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  5. tskaz

    tskaz Active Member

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    And after you un-stick the float you may as well plan on replacing the plugs, oil and filter, and the air filter. And don't forget to wipe out the airbox, like I did. Oops.... be right back....LOL.
     
    tskaz, Mar 14, 2011
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  6. RickCoMatic

    RickCoMatic Well-Known Member

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    Stop the flow of Fuel to the Carbs.
    Drain the Crankcase, Oil Filter Dome, Airbox.

    Remove Driveshaft Boot. Drain and elevate Shaft Tunnel.

    Determine why the Fuel leaked into the Cases.
    Leaking Petcock?
    Left on Prime?

    Rebuild or Install New Petcock.
    Evaluate Carb Floats: Service or Replace the Floats.

    After the Crankcase has drained (and been blown-out with air).
    Install New Filter
    Install Sale Oil for Flush-out.

    Add Insurance so it don't happen again:

    Aux Shut-Off Valve / Hdwe Store / Briggs & Stratton Fuel Valve:

    [​IMG]
     
    RickCoMatic, Mar 14, 2011
    #6

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