I have a evenrude intruder 150 hp. When i put it on the water the boat runs fine. When i stop to fish for at least 30 min or so on.i start back up to take off it idles good. But when i try to throddle up and take off it dies. I start it again and i have to choke it to get it to go full throddle. Thos happens after the boat motor warms up. Any help would be appteviated.