I have a 12 foot Basstender with the hummingbird 535 fish finder on it. Last year I was running a minn kota 50 pound trust hand troll motor on the bow, which I switched around the casing and had no prob.
This year I went to a minn kota 40 pound power drive foot controlled unit.
The problem is when I hit the juice, whether using the touch & go or the constant on, I get interferance on the fish finder. Any suggestions