Mercruiser shifter old model

G

George J

Cadet
Joined
Jan 5, 2020
Messages
9
I have a 1972 65 hp mercury with a mercruiser shifter . What is the black knob at the front bottom of the unit . I had it apart the other day and there's wires going to it. Can't find any thing on YouTube about it. Thanks
 
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,587
Ayuh,.... Welcome Aboard,..... That's a tach hookup,....
 
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