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  1. 6x6TRex

    56 Johnson 7.5 water pump problems

    Hey everyone! I have a 56 Johnson AD-10M 7.5HP outboard serial #1389112 that I got from my grandparents. It had sat in their barn for 20+ years. I replaced the water pump and got it running, had to replace both coils, spark plugs and clean out the carb and gas tank. My problem is the water pump...
  2. 6x6TRex

    Help please!

    What is this? What does it do? Do I need it? It is connected between one ac terminal and the dc terminal on the voltage rectifier. The motor is an 86 Merc 150 Blackmax outboard with an 87 Mariner 150 powerhead on it. It is bad (it looks like it exploded) and I think it is causing my overcharging...
  3. 6x6TRex

    Merc/Mariner voltage problems

    I have a 86 Merc 150 Blackmax outboard with an 87 Mariner 150 powerhead on it. I took the boat out today after I finished replacing the water pump and adding a temp gauge. I ran from idle to around 3500-4000 rpms with no problems, then when I approached wot the battery gauge pegged to max and...
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