I bought a spare prop for my Minn Kota 24v so I took the old prop off to test fit the new. When I got it off, the shaft and nut and thread had white powdery stuff on it. Ive never seen this before
and thought Id ask what it might be. There was also a strange white dot on the head of the lower unit as well that seemed to have the same thing.
Ive had my boat about 3 weeks now and have had it out 6 times, all at the same lake.