[96MariahZ220]

Hello, I have been running my boat for several hours straight and not running my blower. Beached the boat and hung out for awhile went to leave and the boat tries to turn over but won't actually fire. Vapor locked? What could be the issue?

[Andy b]

hydro locked!
Sounds like it could be time to look at your risers.

Take the plugs out and see if you've got water in the barrels

[Cory]

Check Valve for water inlet hose. I posted some pics of the valve if you take a look at my post. You can make one youself for way cheaper than mercruiser wants to sell them for. It keeps hot water from running back down toward your fuel cooler and pump which turns your fuel cooler into a fuel boiler. Fixed my problem. Hope this helps.