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Thread: Winterizing

  1. #1


    I just bought a new to me 2005 Ultra150 this summer.Im putting it away for the winter, I will use the cover then cover with a tarp.What else has to be done?Any help would be appriciated.

  2. #2
    chewweeee monarchmt's Avatar
    Join Date
    Sep 2010
    gas stabilizer
    drain water from engine--add antifreeze if there is any chance of a freeze
    fog motor
    disconnect battery
    grease wheel bearings on trailer
    pray for a early summer---i am

  3. #3
    raiderx72's Avatar
    Join Date
    Jul 2007
    Rocky Hill, CT
    Hook a pump up to the flush port and run antifreeze through it. This will remove the water from the ski and replace it with antifreeze. Use the RV/marine stuff. Fog the engine and. Put the trailer on blocks keeping the tires off the ground.

  4. #4

    Join Date
    Jan 2010
    South Carolina, USA
    3 musts, antifreeze into the engine/coolant lines, fuel stabilizer and fogging oil. if your not mechanically inclined to do this, take it to someone who can. the cost to have it done isnt normally too expensive and much cheaper than a frozen pipe or cylinder, rusted cylinder sleeves, or gummed up carbs.

  5. #5
    steve45's Avatar
    Join Date
    Feb 2008
    Congratulations on the new 'Ski, spotshot!

    Some people flush the engine with antifreeze, some don't. The important thing to remember is NEVER run the flush hose unless the engine is running! Start the engine, THEN turn on the water. Turn off the water, THEN shut off the engine. You can run the engine for about 15 seconds without water.

    Make sure you run the engine on the hose for a few minutes after treating the fuel with stabilizer. This circulates the stabilizer through the carbs. Start the engine without the water, then spray fogging oil into the carbs until the dies. If it doesn't die, let it sputter for a while, then shut it off. Pull the spark plugs and spray oil in the holes for a few seconds, then ground the plug wires and crank the engine for a couple of revolutions. Replace the plugs. Top off the fuel tank to prevent condensation formation.

    When you start it next spring, pull the old plugs and clean them with solvent, ground the plug wires, and crank the engine a few seconds to clear the oil out of it. Reinstall the old plugs and start the engine. Don't put new plugs in until you clear all the oil out and get it running well.

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