3.0 ltr mercruiser. Well i just purchased this boat and didnt have any problems at first but all of a sudden its having problems starting at the lake. When i am at home with the muffs on the boat it starts with just a click of the key but as soon as i get to the lake it turns over but doesnt want to start right away.. Does anyone have any idea what this may be.. I have changed the plugs and have cleaned out the fuel filter at the carb. Any help would be great. thank you.
Also there is no major altitude change between home and the lake..