115 Merc O/B problems


Old 09-25-04, 09:29 PM
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Angry 115 Merc O/B problems

I have a 115HP Merc O/B, on a 16' Cobra. Everything was fine till about 2 weeks ago when I tried to take a friend out for a spin. The motor wouldn't start. I started checking things out and found that there was no spark in cylinders 2,4, and 6. I was pretty sure that the problem was the switchbox for those three cylinders, so I bought a new one and changed it out. No Luck! same problem. Any ideas would be MUCH appreciated.

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Old 10-12-04, 08:28 AM
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depending on the year of your merc you may have rubber coated wires and thi insulation has broken down and caused a short. Check the wireing that feeds the switch box, for shorts to ground.

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