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    mercury 500 thunderbolt wiring harness fuse and rectifier

    Hello I have a question regarding the wiring harness on my 500 thunderbolt mercury serial number starts with 648 can't remember the rest, its a 1984 switch box/coil type. I am rewiring the harness and was wondering if I need the inline fuse currently on it, its on the red power supply wire? I...
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    1984 Mercury 50HP 2 stroke wont run WOT?

    Hello all, Ive been messing around with my 50HP for some time now. It wont run WOT, it runs perfect until I push throttle all the way forward, it seems like it wont advance into high speed, or advance to full RPM. It doesn't sputter or miss, it just wont go to full RPM. The carbs are synced...
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    adjusting carbs, lync and sync Mercury 50hp 1984 serial#6486033

    Hello everyone, I am trying to learn how to lync and sync my carbs and motor. I have taken apart carbs, cleaned them, set the floats, and installed the new gaskets in fuel pump and float bowl. It states in the manual to back the idle mixture screw 1 1/2 turns open. Thats the easy stuff.... Then...
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    1981 Mercury 50HP Thunderbolt 4 cylinder stator specs, is mine bad?

    Hello, I have a 1981 Mercury 50HP Thunderbolt 4 cylinder. I tested the volts and ohm's lastnight with a multimeter. When I tested the blue and blue/white wires from the stator the range in the book was 180-400 volts while cranking. The reading on the multimeter was 260 volts and then after a...
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