Exhaust issue

[Barema Bullet]

I have 2, 225 yammies, recently have noticed port engine with water flushing out of the exhaust outlet at the back of the engine, this is not the case for starboard engine? is it fair to assume that i have a crack gasket allowing water to enter the exhaust channel and pass out through this section? and will it be Detrimental to the engine?
Any thoughts?

[Barema Bullet]

Following my prv post.
It seems that is have a issue with the exhaust stack from what i read by Capsolo and weak TT stream.

where can i find the Pressure control valve?

would the exhaust stack corroded away would cause also water to exit the engine from the top exhaust outlet (idle Port) on the back of the engine?

thoughts?