I recently bought my first boat off craigslist. The trolling motor worked for a little while but then it randomly stopped. Since then, it sometimes works sometimes doesn't. I don't think it is a problem with the electrical because it sometimes starts if I tap the propeller with a stick. It almost seems like it is getting stuck. When it does work, it works perfectly and goes plenty fast. I have never had a trolling motor before so I was wondering if anyone has any ideas on what to try first. I'm adding a couple pictures of the motor.

Sounds like the brushes in the motor are worn out.

If the prop spins freely when spun by hand, it is not a mechanical "stuck" problem.  I agree it's most likely the motor, and most likely the brushes.  Which may be serviceable, not sure.  I think they have brushes.

Agree with the above, probably the brushes

Agree, probably the brushes. Have not done one in a long time, but like most things that have brushes it's an easy job.

Thanks! I will probably get a friend to help since I don't know anything about how the trolling motor works. At least I know what is wrong.