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  1. #1
    Member
    Join Date
    Mar 2008
    Location
    Elgin, SC
    Posts
    246

    Help 2007 Yamaha 115 2 stroke Draining Cranking Battery

    I took my boat into the shop to have the carburetor cleaned/rebuilt. Before I took it in, I had no issue with battery drain. A week after I got it back I took the boat to the lake and dead cranking battery. I went back home and the battery won't charge 100% so now I'm certain it's the battery, which is three years old and sits outside. Makes sense to me.

    I buy a new battery with more CCA and RC, give it a full charge that evening, but by morning it's down to 50% charge. I check the positive from the motor and it's drawing over 250 MA just sitting there. Battery drains to 50% in about 5-6 hours. Anyone have any suggestions as to what could cause that many MA draw and what I need to look at? I'm not sure I what to take it back to the same shop as I found some odd things with my boat when they were done. I think they took it fishing.

    Thanks for any help,
    Bill<br /><br />
    Modified by wkerber at 10:14 AM 1/17/2011


    Modified by wkerber at 10:22 AM 1/17/2011
    Bill Kerber

  2. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
    Join Date
    Jun 2004
    Location
    Asheboro, NC
    Posts
    7,090
    #2

    Re: Help 2007 Yamaha 115 2 stroke Draining Cranking Battery (wkerber)

    Have you removed all of the wires except for the engine ones? Are you sure it's related to the engine and not a pump that's running?

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