Quote Originally Posted by Simonlawnservice View Post
I just bought the boat in the middle of last year and it has done it since.

It could be the wrong type of breaker for a trolling motor. When I upgraded my boat from a 12 volt to 24 volt trolling motor I found there were cheap breakers around $10 but all the marine grade breakers were closer to $40. Various forums said not to go with the cheap breakers and to get the proper marine grade breaker. I spent the extra and got the correct breaker. Since then I've had no problems running my 80lb thrust 24v motor on high for extended periods.

It looks like the price has dropped on marine grade breaker. The one I bought is now $29 on Amazon. I would replace your current reset with this and if you still have problems it is something internal in your motor.
http://www.amazon.com/gp/product/B001PTHKSK