Medallion Tachometer Installation

[kennethb337]

Can anyone tell me how to wire a Medallion Tach. I do not know the part number of the tach but it is a two wire tach and one wire for the light. The motor is a 12 pulse (6 pole) system made by Mercury. The medallion tach has three settings: 5, 8, & 6. I was told by a friend the 6 is for a 6 pole setting. Can anyone confirm? There are three electrical terminals on the tach: IGN, GRND, and LIGHT. The harness has the following tach wires: purple (ign), grey (sender - coil), black (grnd), blue (light). Can you tell me how to connect this tach? Does anyone have installation instructions for Medallion instruments?

 

[Realgun]

Re: Medallion Tachometer Installation

ING-Sender grey wire<br />GRND-Black ground wire<br />light- Blue wire<br /><br />Not sure if you use the purple wire here.

 

[mobgod]

Re: Medallion Tachometer Installation

OK now I have a question how can I test my tac it's stuck at 5000 rpm not sure what to do maybe. it's no good I need a new tac?

 

[Don S]

Re: Medallion Tachometer Installation

The first thing you need to do is start a new thread of your own, and include some engine and tack ID info.

No reason to hijack an old 2005 thread to ask your question.

 

[mobgod]

Re: Medallion Tachometer Installation

The first thing you need to do is start a new thread of your own, and include some engine and tack ID info.

No reason to hijack an old 2005 thread to ask your question.

Hmmmmm I thought this would be a good place to post it but I do have a Johnson TXL77C