Water in oil

[Catman800]

I got a couple 2014 f90 Yamaha outboards with the same issue water in the oil and the base pan seems to be good compression what could be problem

[99yam40]

I got a couple 2014 f90 Yamaha outboards with the same issue water in the oil and the base pan seems to be good compression what could be problem

water in oil on a 6 year old motor, might be corrosion if this is in salt water.
were the motors always flushed with fresh after a run in salt?