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    1973 Merc 7.5 / No Spark

    I suspect that I have a bad ignition module. It is located under the flywheel it is red in color has 336-4524 on it it has five connections. One goes to the condenser and both spark plug coils (green wire), one goes to the stop button (salmon wire), one goes to one stator coil (blue wire) onen...
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