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  • cooling system

    What is the best way to clean the cooling water passage on a 1999 200 hp saltwater series?
    Thanks,
    Julio

  • #2
    the best way is to take it apart, the easiest way is to remove the thermostats and housings, run the engine is a tub of water about 2000 rpms and let the water flow out of the tstat holes.

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