Tach question

[sa_cop]

How do I go about hooking up a

How do I go about hooking up a tach to my motor ('81 Johnson 60hp)? I have searched the internet and found numerous examples. Thanks.

 

[david_r]

do you have the little 3 prong

do you have the little 3 prong plug under the key on your remote control?

 

[jwbmarine]

"u should be able to plug in t

"u should be able to plug in to your box,but i will assume,u dont have the plug,...so,go in to control box,...add on to purple,gray,and blk,run to location of tach,....gray,is sender or pulse wire,blk--grnd,pruple is hot."

 

[sa_cop]

I believe my control box does

I believe my control box does have the 3 prong plug.

 

[david_r]

"if im not mistaken , doin thi

"if im not mistaken , doin this from memory, the 2 pins side by side ---the one on the left is ground the one on the right is signal and the one alone on the bottom is key/hot (ignition switch)

the best way to make sure is to take the control box apart.......if you hook it up wrong you will fry your tach and possibly your regulator."

 

[sa_cop]

How big is the tach that's

How big is the tach that's able to be plugged into this recepticle? I want to mount it into the console but don't want to mess with it's integrity.

 

[david_r]

the plug is just for the wires

the plug is just for the wires......youll have to find a place to mount it...........i believe mines a 3"...you may be able to get a bracket similar to the ones for auto gauges but im not sure.


and a auto tach will not work.....

 

[sa_cop]

What about one of those Tiny T

What about one of those Tiny Tach's? I've been reading alot on this site and that thing is talked about alot.

 

[david_r]

"the only ones i could find wh

"the only ones i could find where for 2cyl but here is the link http://www.tinytach.com/tinytach/gasoline.php

and apparently they are battery operated and in 5yrs you will ahev to buy another........unless i overlooked something.....i didnt look through the site real well"

 

[kevinj]

"You have two options:
1)

"You have two options:
1) purchase a tach that has the OEM 3-prong plug like this one: http://cgi.ebay.com/ebaymotors/OMC-JOHNSON-EVINRUDE-OUTBOARD-TACHOMETER-(BR%2373 58)_W0QQitemZ310131393899QQcmdZViewItemQQimsxZ20090326?IMSfp=TL0903261210004r178 73

2) Purchase a generic tach like this Teleflex unit like this one: http://www.overtons.com/modperl/product/details.cgi?i=73310&pdesc=Teleflex_Eclip se_Tachometer&aID=101A&merchID=1009&r=view and wire it direct in the control box.

Tach wires are as follows:

Purple = 12V accessory (only hot with key on)
Black = ground
Grey = pulse (tach) signal

Generic tachs will have a dial on the back that you switch to match the pulse signal of your outboard. I'm pretty certain that yours will be a 6-pulse.

I've done it both ways on two different outboards with perfectly fine results on each one.

Good luck."