tach help

E

edson1988

Seaman Apprentice
Joined
Jun 2, 2012
Messages
30
today I went to buy a tach for my 1989 110 hp cause mine doesn't currently have 1. the person at the counter told me I should contact evinrude to see if there's a harness to buy so I can install a tach . I was looking at the Teleflex. any help would be appreciated
 
AEROCOOK

AEROCOOK

Master Chief Petty Officer
Joined
Jul 28, 2004
Messages
872
Re: tach help

There should be a 3 pin connector on the control box under the key, this is where the tach plugs in. The Teleflex tach likely doesn't come with a harness that will plug right in so that's why they directed you to the manufacturer. There are other ways to wire it and bypass the connector plug.
 
E

edson1988

Seaman Apprentice
Joined
Jun 2, 2012
Messages
30
Re: tach help

thanks for the reply I contacted local dealer they say they can get me the harness and tach but the need to know how many polls my engine has. I have been looking in the manual but could not find it . 1989 evinrude 110hp
 
Joe Reeves

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: tach help

The tachometer operates off of your engine's six (6) pulse alternator charging system. Most of the present day tachometers have a dial on the back of them... set it to number 6.
 
E

edson1988

Seaman Apprentice
Joined
Jun 2, 2012
Messages
30
Re: tach help

I purchased a faria tach today and I understand where to get the positive from and the ground from but not sure where to get the signal from and how to attach it? thanks for the replies
 
P

phipps

Petty Officer 1st Class
Joined
Jul 20, 2008
Messages
385
Re: tach help

edson1988 said:
I purchased a faria tach today and I understand where to get the positive from and the ground from but not sure where to get the signal from and how to attach it? thanks for the replies
Click to expand...

There should be a gray wire in the wiring harness. That is your signal wire.
 
Joe Reeves

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: tach help

The "gray" wire (tach sensor lead) that Philipps mentions above would attach to a gray wire leading from your tachometer or to a terminal marked "S" or "Sen" or Sensor. Describe what the back of your tachometer looks like.
 
E

edson1988

Seaman Apprentice
Joined
Jun 2, 2012
Messages
30
Re: tach help

ok sorry I wasn't clearer what I am not sure about is how the signal gets from the engine to the signal terminal ? would the manufacture have it already going from the engine to the control but just not installed? then I would just plug in the connector and run grey wire to the signal terminal? thanks for the quick replies
 
8

82rude

Rear Admiral
Joined
May 8, 2012
Messages
4,082
Re: tach help

if you bought a faria do not set at 6 ! faria indicates on their info sheet that 70 hp and greater including sea drive are 12 pole and you set at number 5 on the dial.http://faria-instruments.com/site_manuals/IS0086_S_Outboard_Tach_Applications.pdf set on number 4 if you got the 6000 rpm tac .I have the 7000rpm tac and is set on 5 and is spot on .though it did confuse me as for telflex what joe says goes.
 
Last edited:
E

edson1988

Seaman Apprentice
Joined
Jun 2, 2012
Messages
30
Re: tach help

ok the new harness has 3 wires coming from it black purple and grey and a blue that's not attached to the harnes the old harness has just 1 pink wire running to the trim guage. the boat originally didn t have a tach. how do I wire everything in ?
 
Last edited:
E

edson1988

Seaman Apprentice
Joined
Jun 2, 2012
Messages
30
Re: tach help

so I believe the harness gets plugged in then grey goes to signal and black to ground and purple to switch power how do I get power from old harness which has the trim gage attached. thanks for the replies ?
 
You must log in or register to reply here.
Top