I have a Minn Kota Fortrex trolling motor and noticed it has started making more noise than it did when I first got it. On every turn you hear a definite sound but I can't tell what's causing it. I checked for line damage but didn't find any when I took the prop off.

As you can imagine, it's a killer when your trying to tightline for crappie over a brushpile. Any ideas would be appreciated.