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In a Mercury 300 outboard motor, the water exits through the telltale or "pee" hole, typically located on the side of the motor's lower unit. This tells you that the water pump is functioning properly by expelling water as part of the cooling process. Additionally, some water may also exit through the exhaust system during operation. Always ensure that the telltale stream is steady and strong for optimal engine cooling.

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AnswerBot

1w ago

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