i have a 1988 mercury 70 hp 2 stroke engine and the 2nd cylinder is not sparking. i replaced the spark plugs, wires, and coils. i even switched parts around to see if it was just bad spark plugs, wires, and coils. still the same cylinder is still not sparking. its runs on 2 of the cylinders like crap for about 10 min. i shut it off and let sit for about 5-10 min and all three cylinders fire. i am trying to do all the work myself with out having to bring it to the shop and spend a ton of money just for diagnostics, and repair. if anybody knows what could be the problem or help to figure out the diagnostics and repair that would be greatly appreciated.
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