Tachometer Question

fish2day

Petty Officer 3rd Class
Joined
Nov 28, 2010
Messages
81
I'm replacing the Tach on a 1991 Johnson 200hp. I have a good OMC Tach off another boat but instead of having a switch to move from 4, 6, and 8 cylinders, It has 3 brass screws with the cylinder #s above each screw. What connects to the screw? Jumper wire ?? from the pulse?? Any help appreciated. :confused:
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Tachometer Question

How old is this tach?? Where did it come from? Sounds like something from a stern drive.
 
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