Boat Vibration

[sambo747]

I have a 19'6" Sea Fox with a 115 Saltwater Mercury (2 months old). I towed a small jon boat about 2 miles back to a dock because it was out of gas. After I dropped the guy of and headed out on the river I noticed a bad vibration in my boat once I hit about 6mph and of course the faster the worse it got. When I tried to open it up it just bogged down. Does anyone know what could have cause this?

 

[Mumblerone]

Re: Boat Vibration

Sounds like you either banged your prop or picked up some weeds...check it out. Did you notice the problem when towing?

 

[Sno Quest]

Re: Boat Vibration

Sounds to me like you fouled a spark plug.<br />It is not uncommon to foul a plug when you are running the motor and not really working it.<br />Make sure your running the Oil the manufactuer recommends, and that it has the corrct Spark plugs in it. I Always carry spare plugs, and in a Merc/Mariner, I have had the best luck with NGK plugs, Good Luck and Good Boating.