Have an issue with my 115 hp optimax misfiring after warm up.At least it was initially after warm-up.now it’s all the time.I recently had it into a local marine shop and they tested everything under the sun to the tune of $762.seems to be an electrical issue of some sort. The misfire is common...
I relocated my battery to the bow and have had misfire issues since. Wonder if adding cable could be the issue? Nothing showing on ECM .no codes or alarms