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Thread: 2002 Merc 50hp Outboard Oil Injected

  1. #1

    Cool 2002 Merc 50hp Outboard Oil Injected

    What purpose does a thermostat serve on an 50hp outboard? I would think that you would want water running through the engine at any temp.

  2. #2
    Thermostat controls the flow of water through the motor to maintain the correct temperature for optimal running.

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