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What are some tips for troubleshooting a Mercury boat motor?

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Quick Answer

Some tips for troubleshooting a Mercury boat motor include to rule out electrical problems and investigate possible fuel problems. Additionally, check the motor's water flow.

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Full Answer

The easiest things to check on an outboard motor are usually the electrical parts. If the engine has battery power, check to ensure the connections are good and that the battery is not too old. A spark plug is also a potential problem, so check that, too. If those are not the issue, and you are sure that the problem is electrical, it is best to talk to a professional boat mechanic.

Fuel problems may also lead to issues with a Mercury motor, and old fuel may cause them, so make sure only new fuel is in the tank. It is also possible that the fuel has contamination or water in it. If the fuel is fresh and the motor still does not react, the problem may be with fuel flow. Inspect the fuel lines for leaks, crimps or twists to ensure fuel is flowing.

Checking the flow of water is also important, and a certain amount of water always flows through the engine to cool it. Without the water, the engine may overheat, which stops the boat from running. A lack of water flow may also occur due to a blockage, so check that, too.

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