I have a 2013 P2 with a MG trolling motor and when I turn the speed past 5 to quickly more to another spot, it only runs for 1 minute or 2 then looses power, like it is may only be running on 12 v (studdering).If I reset it at 5 or below it runs fine for moving.how can I tell if it is a motor issue or where else should I check?im not very experienced in running down electrical issues, but any suggestions would be appreciated.thanks