Re: 1985 115 hp inline 6- Too Loud!!!
This is a question that doesn't show up all that much, so I might start to think that something about your particular motor, or situation might make it louder than others?
So start looking at your particular situation.
Is the correct tuner in place? It's like a tube/ exhaust pipe/ muffler under the powerhead, in the midsection.
Is it a jet drive?
Is there some sort of internal mechanical condition making noise? and in need of repair?
Are you sitting right next to it?
In some applications just the sound of any motor to the cockpit and dash can get reflected back to you and be very loud. (but that can be more from boat design and harmonics than a particular model motor)