I was out on the lake yesterday and saw a flashing icon to the left of my hours on the tach gauge. It is hard to tell exactly what the icon is but I suspect it is an hourglass. It is flashing. Is it telling me it is time for some maintenance? I canont find anything in the limited documentation I received when I bought the toon (new). Any ideas boaters? I'll see if I can get a picture next time I go up north and attach. Thanks much!