Need some help

Discussion in 'Bubba's Outboards' started by Ace, Jul 17, 2006.

  1. Ace

    Ace New Member

    Gastonia N
    I have a 1989 40 hp 4 cyl Mercury Out board motor.The charging system don't seem to be working. I check the fuse under the motor cover. It checks out ok.Does anyone have an idea what could be wrong.

    :cat: :0010:
  2. Mr.T

    Mr.T Active Member

    Could be the rectifier diode is burned up, could be several things.

    Buy the shop manual for your motor and it'll have a full section on troubleshooting the electrical system, with step-by-step instructions on checking it out so you know what's wrong.

    You can get the manual at just about any boat service/dealer shop or you can buy it online - the one you want is the Clymer guide.

    If you're not mechanically inclined, it's probably best to just take it to a shop and have them work on it. But if you can change the oil in your car and follow directions, you can probably work on your motor just fine.