I have a 79 GREW with an OMC 2.5L 4cyl Inboard which just stopped without warning. The starter is working, its cranking the engine but won't spark. <br /><br />I checked all grounds, changed the points, condensor, rotor, cap, plugs and leads.<br /> <br /><br />Could it be CDI (voltage regulator), selanoid or coil? <br /><br />Any idea's?