2006 Johnson 30hp misfiring, water in bottom cylinder.
I have had this boat only one week! Prior to purchase, I ran the engine pup with muffs attached. All seemed ok. When I first took it out, it would run well out of gear but once in gear, it would misfire badly under load. I took to an outboard mechanic and they have told me the bottom cylinder is getting water. When I asked where from, he said either from the shaft seal, the water galleries or the head. Could it just be the head gasket? The boat shop are trying to steer me toward a new motor!!