Trolling motor spins freely

[trooper1822]

Took my boat out for the first time today to test it out since buying it. I picked up a used motorguide 85 24v trolling motor for less than 100. It needed a new steering cable so I replaced it and tested it out. Motor powers up but has a issue. When I give it power the prop spins and the whole assembly rotates and I have no control over it. The foot pedal moves all the way down until it cant go any further. It physically overpowers my foot. I suspect this is why the original cable snapped. Any ideas as to what it wrong?

 

[Grub54891]

Not much experience with that setup, but there has to be gears or places to hook up the steering cable. Something must be broken?

 

[BTL]

There should be a tension control screw somewhere on the foot pedal that controls how freely the pedal can move. Sounds like it may need to be tightened.