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  1. #1

    Default Main Breaker pops

    I have a marine power 350 carbureted engine. When the engine is cold and I start the engine it starts fine runs for a minute or two then pops the main breaker.. I turn the key off and reset the breaker and everything starts and works fine with no problems after that... I check the obvious things like tight connections plugs seated correctly etc. What would draw that much only on startup? Sticky relay somewhere?

    CSM

  2. #2
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    6,755

    Default Re: Main Breaker pops

    It could be the breaker is failing.....I'd suggest using a clamp on DC amp meter to verify the current draw is excessive....

    Usually, the alternator is a likely suspect - its one of the few things connected directly to the +12VDC main line.....

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