CANT TURN !!

soak it real good with wd-40 over night where the shaft goes into the coupling and try cleaning it up with steel wool or emery cloth. It looks like salt water corrosion to me..once you get the steering rod sliding back and forth then polish it up real good with steel wool. I would move the motor back and forth by hand rather than the steering wheel and clean all that rusty crap off the shaft so it moves smoothly and remember to keep it shiny ...Frank