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  1. C

    weak spark --140hp mercury

    Does anybody know how to figure out whats causing the weak spark? I need ohm and voltage figures for each part and wire. Bought a book, says take it to your nearest dealer. Some help there. Motor ran fine then my brother let it sit in the water a couple of months. Went to pull it out and there...
  2. C

    Mercury 1400 ignition

    I'm trying to fix my brothers 78, 140hp mercury outboard. I seem to have power and ground to the ignition box and power to the dist. No power to coil. How can I check the ignition trigger and box?
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