I just purchased a 1976 Evinrude 2 hp. This motor only has one gear, forward. In order to go in reverse you must turn the motor head around. With my "new" motor, if the flywheel is going clockwise, the propeller is going counterclockwise (or in reverse). I feel like I am losing my mind as it seems if I want to go forward I must turn the motor head around so it is pointing backward. I have taken the lower unit off to replace the impeller. If I rotate the driveshaft clockwise the propeller goes counterclockwise. What am I missing? Thanks.