I have a 1995 75 Hp Mariner with about 100 hours of running time. This year I had to replace the starter but other than that, I have had no problems with this engine at all. Today I attempted to start the engine; it would crank well but it will not fire at all. I used a spark tester at the plug wires and there is no spark at all. Is there a fuse in this system somewhere or is it most likely that I have a CDI problem necessitating replacement of the ignition unit.
