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2001 mpi 7.4l hardly a spark

4.5K views 18 replies 7 participants last post by  CliffA  
Last year, I was told that I needed a new starter because of similar symptoms. Turned out that a bad tach was sucking the juice out of the computer and ignition system keeping the spark plugs from firing. Took a whole season and four marine mechanics to find the problem and at least two of them had a computer hooked up. Since then, I have discovered that certain of the tachs are a weak link in the ignition.

Gene