Have a 225 Pro XS making a he'll of a noise when running down the lake. Don't have a good way to describe it better than sounds like I put a baseball card in the spokes on my bike. It doesn't affect performance at all....I can run at all rpms with no problems just sounds terrible. Did a visual check under cowling and nothing loose etc. Is still under warranty but was just wondering what it might be and if running it another couple days until I get an opening would hurt...

Oiling and wat pressure is ok.

That's what I was thinking at first was something loose vibrating or hitting against cowling....I'll look where you are talking in the am. Thanks

Hmmmmmm,

  I hope its better than the noise we heard last time i went fishing with you in Mississippi.   Atleast the trolling motor got us back to the dock..


I think I still have the pictures of the aluminum glazed spark plug somewhere...

There was a topic similar to this one on another forum and here was what they said. I have no idea if this is the problem but its sounds possible.