video I made at strawberry

[2knots]

Thanks guys, Alan, sorry what is the zinc's that need to be cleaned?  Sorry i'm not sure what you're talking about...  Thanks Jeff

There are usually 1 on each the side of the motor bracket (mine are rectangular) and the “fin/plate” that is on the bottom of the cavitation plate (above the prop 3rd pic) that is used to counter the steering torque caused by the prop. Added some pics my boat has 1 on the bottom of the motor bracket (2ndpic) and 2 other attached to the hull (1st pic)