So I started my boat up after the winter and noticed that after about 10 minutes of idling, my exhaust has steam coming out of only the right side of the boat. I believe this was happening last year towards the end of the season, but did not think twice about it. My question is when running a boat off of the hose, how much steam is normal if any at all and should I be concerned? Up to now I've looked at the spark plugs and not noticed anything out of the ordinary with them, and I also replaced the risers last year and installed them with new gaskets, as well as a new water pump. The last risers were completely rusted and some of the chunks might have gone through the elbows. The boat temp is reading at 160 and am wondering what should be of concern. THANKS!
Here is a video of the amount of steam, its about 55 degrees outside: Steaming Mercruiser - YouTube
Here is a video of the amount of steam, its about 55 degrees outside: Steaming Mercruiser - YouTube