Tach Merc to evinrude

mobiletec

Cadet
Joined
Sep 3, 2008
Messages
23
Hi everyone. I recently changed my outboard engine from a merc to an evinrude. Know i had a tach with the merc is it possible to use this same tach in my dash for the evinrude? Could the merc tach be riged to work with the OMC control harness. The Omc is three wire and the merc tach has three wires also Thanks in advance
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Tach Merc to evinrude

a tach is a tach, yes, gray wire is sender wire.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,093
Re: Tach Merc to evinrude

Most Tachs will work on both motors. The exception is the old quicksilver tachs, and some OMC tachs from the 60s. if the tach in question is a aftermarket, that runs off the stator, you may need to adjust the setting. Some evinrudes need a 5p setting. Most Mercs use a 6p setting.

You may be able to look up your application on the tach maker's web site.
 
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