Spent a couple hours in the water, and went to run fresh water, it wouldn't start. New battery. When I got home I checked voltage/system. All good. Noticed coolant tank empty. Pulled spark plugs. All 3 had loads of water. Oil was creamy. Not being a Seadoo expert, I believe my headgasket is gone and will tackle a replacement. Any of you guys have ideas? The ski was upright all day, ran fine plugs had water on them, but other than that, color was normal. ?????