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  1. #1

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    Winterizing newer 300 skis

    Hey guys. I have a 08 RXP and have always winterized the thing by taking out my O2 sensor and then fogging the cylinders and valves via the injector holes. No issues ever.

    I bought a Scarab boat that uses the 255 motor/intercooler setup. They also have 2 O2 sensors and a catalytic converter or something big on the exahust by the sensors. On the scarab forum there is a guy telling everyone not to fog their engine for winter storage unless it will sit longer than 12 months. They are claiming with these newer motors that you will damage sensors and that your better off not fogging anything.

    Is this true or what are you guys doing on the newer 300 skis? Do they have factory O2 sensors?


  2. #2
    jeel's Avatar
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    The manual says to spray xps oil directly into the cylinder when spark plug is out and not fogging the old way i think you are talking about

  3. #3
    JFizzleJR's Avatar
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    The Sea-Doo 300 jetskis do not have a factory O2 sensor

  4. #4

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    OK. I wasnt sure. For some reason they got this setup with 2 of them on my boat on the 4tec motor

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