Hello all, I have a 1974 Mercury Outboard 7.5 hp serial number 7029200 . Ran good 2 years ago , now there is no spark. I tested the coils for continuity between the positive and negative terminals of each , and they tested ok. Pulled the flywheel , everything looks in order. When turning the tiller and advancing the throttle,there are 2 metal bands that make contact to advance or retard the timing . There is no reading from the ohm meter to the two brown wires that feed and connect via a bus running to the switchbox when advancing or retreating the throttle. Could one of the metal contacts not contacting cause a no spark condition?
I have cleaned all connections including the spark plug wires where they plug into the coils, cleaned the coils, where the spark plug wires plug into and bypassed the kill switch to both open and ground, and still no spark.
Any ideas greatly appreciated , need my kicker soon!
Thanks, Walt :joyous:
I have cleaned all connections including the spark plug wires where they plug into the coils, cleaned the coils, where the spark plug wires plug into and bypassed the kill switch to both open and ground, and still no spark.
Any ideas greatly appreciated , need my kicker soon!
Thanks, Walt :joyous: