85 hp Yamaha water in lower cylinder help!

[Jakefromfl]

Iv read the same thing with the 90hp I have the same problem boat runs good but after idle zone the boat will not plane I pulled the plugs the bottom one looks like it was dipped in a milk shake I had new plugs with me replace them and it ran great got home after cleaning pull plug again and all creamy with I pull the head no sigh of hole or gasket bad so I pulled the exhaust cover gasket looks good no holes in plate. Is there anywhere else water can get in. Help!!

[boats.net]

Unless it doesn't have a cracked block or water in gas the head(and gasket) and exhaust inner plate is all there is.

[Jakefromfl]

Is there a place I can tell if it's craked somewhere I can look. Thanks

[boats.net]

Just have to inspect cylinders.