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Thread: Merc Outboard Voltage regulator fire

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    Default Merc Outboard Voltage regulator fire

    Just checking if anyone has had similar experience with their Mercury outboards. Seems that my voltage regulator burned up and caused a small fire underneath the cowl. Thankfully it was snuffed out and looks like minimal damage was done. Any thoughts on why this happened and how it can be prevented in the future?

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    Quote Originally Posted by rippinlip View Post
    Just checking if anyone has had similar experience with their Mercury outboards. Seems that my voltage regulator burned up and caused a small fire underneath the cowl. Thankfully it was snuffed out and looks like minimal damage was done. Any thoughts on why this happened and how it can be prevented in the future?
    Not very common, is this a single OB setup...? I would be looking real hard at the electrical system on the boat.
    “Nothing worth doing is easy”
    TR

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    Quote Originally Posted by rippinlip View Post
    Any thoughts on why this happened and how it can be prevented in the future?
    Put the correct fuse in all the power lines an make sure all wiring is per marine code.

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    Quote Originally Posted by Akgramps View Post
    Not very common, is this a single OB setup...? I would be looking real hard at the electrical system on the boat.
    Yep, its a single 200hp.

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    Upon talking to some tech's, their thoughts were to make sure all battery connections were super tight (no wing nuts), and clean.

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    Bad/ dirty connections can always be a problem as well as grounds.
    Its always good to check the obvious things first.

    Single or dual batteries? What is their condition? Type of battery?
    “Nothing worth doing is easy”
    TR

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