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  1. M

    Stator or Switch box??

    I have a 1988 mercury classic 50 45hp. Most of the time it will not fire the top cylinder. The top rpm is about 4200. Then at times the top cylinder will fire and get up to 5200-5400 rmp.(normal specs). It seems to run on all 4 cylinders more often when the motor has warmed up. I have used an...
  2. M

    1988 mercury 45 hp. runs on 3 cyl then 4

    I have a 1988 mercury classic 50 45hp. Most of the time it will not fire the top cylinder. The top rpm is about 4200. Then at times the top cylinder will fire and get up 5200-5400 rmp. I have used an inline spark tester which shows the problem. I have also switched the plug wires and plugs but...
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