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Old 07 January 2018, 12:06   #1
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Yamaha 25 2stroke crossed battery wires. (HELP)

Hi guys.
So I have a yamaha 25 2 stroke 1998 engine and took the battery out yesterday to charge it.
When I I reconnected last night I connected the polarities in reverse ( tried doing a day time job at night) and since then the engine doesn't seem to be producing a strong electric current. When connecting the battery the wires melted so I had to replace them but when I attach the engine wires straight to the navigation lights they don't seem to be as bright as they were before. Any suggestions to what the issue might be?
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Old 08 January 2018, 02:29   #2
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Start with a multimeter and check battery and the voltage at various places (like at the lights).
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Old 08 January 2018, 05:11   #3
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i would say you have blown your rectifier/regulator

https://www.justanswer.com/boat/5ewz...-polarity.html
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Old 12 January 2018, 10:56   #4
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Thanks for the response guys. After replacing all the wiring turns out it was indeed the rectifier. Ordered a new one from Yamaha for 120 euro installed.
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