So, I bought a used 2005 225 Pro XS from Lee in 2015. It had 585 hours on it when I bought it. Since then I replaced the air pump. I'm now over 800 hours. Of course most of them are at idle (side image scanning). Other than the air pump it has been solid. Just trying to get a feel for what kind of hours are the norm for these 3.0 Merc's.