I have and 1981 Johnson 75 HP and the prop on it lists the size as 13 X 19. This seems like a larger prop than needed. Is this the correct one?<br /><br />Thanks in advance for your help.
I just recently purchased a 75 hp Johnson but am unclear about two things. <br /><br />What is the year of the motor? The Model# is J75TTC1E and the Ser # is J5829356.<br /><br />And what is the "knob" for that is just below the key switch on the motor control? The 'knob' rotates both...
