I took boat out today. Start it in the water on the ramp unhook ideal around temp gauge gets over 200 I wanna say it was at 220 maybe 230 then check engine light comes on blinking. So I shut it off let it cool down then try it again same thing. Then I just put it back on trailer. Not really sure what problem is. Guy I bought it from says he has it serviced every year fluids changed. It has 190 hrs on it. Any ideas that would help.