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  1. #1
    Member
    Join Date
    Aug 2005
    Location
    wabash
    Posts
    300

    Question Outboard not charging battery

    Posted this in the yamaha forum but no responses so far so figured I would try here.

    Needing alittle help figureing out a problem im having with my 1999 150 yamaha vmax. After cranking the big motor there is no voltage increase. With the motor running its only showing around 12.2V So looking for some info how to solve this problem. Thanks weidner21


    1999 skeeter ZX 185C 150 VMAX

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  3. Member
    Join Date
    May 2010
    Location
    Phresnough
    Posts
    210
    #2
    Probably a bad rectifier. I had one go out on my Merc...no big deal if that's it. Probably 40 bucks and one hour labor.

  4. Member Rick Dennington's Avatar
    Join Date
    Apr 2012
    Location
    Lakeview, Arkansas
    Posts
    2,515
    #3
    Don't know much about Yahaha, since I run a Mercury, but it sounds like the alternator is going (or gone) bad....A 150 should have at least a 35 amp alternator...I had a 150 Black max w/ a 35 amp alternator, and it went out...It's like a car or truck...when the alternator goes, you're just running on battery, till it runs down (that's why your lights look yellow on a car)...Not saying that's what it is, and it could be something else.....Take it to a dealer, and have it checked just to be sure.........
    '99 Ranger 491VS Commanche w/a 2013 250 Pro XS....