It's on a 15ft 1975 Meyers fishing boat. No marine growth however there could be 400lbs of water soaked into the foam. Do you think it would effect it that much?
I replaced both plugs. I will say day one it was running on one cylinder. I could hear it and I had a fowled plug. However since putting new ones in its not making that noise. But I'm still not getting speed.
You
I've got a 1973 Johnson 25hp outboard motor. Runs great in all aspects and in the barrel test putting it in gear it audibly sounds and visually seems to reach full throttle and max rpm but after putting it in the river it doesn't sound like it's reaching max rpm and only pushes about 5mph...
