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bigk44
11-27-2013, 06:19 PM
Just went to hook up an AUTOMETER MEMORY PRO COMP TACHOMETER 6821 0-10000 RPM. Usually there are 4 wires Green (MSD), Black (GRD), White (LIGHT) and Red (POWER). This tach has a Red, White, Black and then a 2wire wire looks light a lamp cord. 1 wire is black the other is black with white stripe. Any ideas?
MM90
11-27-2013, 08:18 PM
A little google and here ya go.

http://www.autometer.com/tech_faq_answer.aspx?sid=3&qid=18
MM90
11-27-2013, 08:21 PM
Or here

http://www.autometer.com/download_instruction/320h.pdf
bigk44
11-28-2013, 07:21 AM
A little google and here ya go.

http://www.autometer.com/tech_faq_answer.aspx?sid=3&qid=18

So the double black can be used as a green wire? Going to an inductive pick up, this would be the msd correct? Or am i reading wrong?
BigBlueFord
11-29-2013, 07:52 AM
So the double black can be used as a green wire? Going to an inductive pick up, this would be the msd correct? Or am i reading wrong? I don't think so. It sounds to me like you have the wrong tach for your application. It sounds like you have a tach for a magneto not a distributor.
bigk44
11-29-2013, 04:39 PM
I don't think so. It sounds to me like you have the wrong tach for your application. It sounds like you have a tach for a magneto not a distributor.

Looks like you correct BigBlueFord.

Anyone need a tach for a Magneto. $125.00 shipped to your door