90hp mercury

[rjkwalley3]

I have a 90hp Mercury that I bought few days ago. It cranks and runs fine in the yard with the water hose. I got everything checked out took it to the lake and made 5 rounds it died no warning . Now it will not crank it acts like its not getting fire in the plugs. Any ideas as to what could be causing this?

[boats.net]

Check compression, check for spark at spark plugs, check for water in gas.