1979 70HP Johnson Tachometer

[marcusknight]

Does anyone know where the tachometer should be connected to on this particular model?


Mark

 

[psteurer]

Re: 1979 70HP Johnson Tachometer

Does your remote control box have a plug in connector below the ignition switch? If so, there is a 3 plug tach wiring harness you can buy to make a tach connection very simple. If not, I believe there are wires inside the control box you use to wire a tach.

 

[willamettejeff]

Re: 1979 70HP Johnson Tachometer

If no external connector on controls, then gray (tach sense), purple (12v when ignition on), & black (ground) found in short pigtail inside controls.

 

[marcusknight]

Re: 1979 70HP Johnson Tachometer

I only see a fuse holder and a tensioner control on outside of the control box. Connection are inside???

 

[DJ]

Re: 1979 70HP Johnson Tachometer

I think what you are referring to as a "fuse holder" is the tach. connection. There shouldn't be any fuses there.

 

[marcusknight]

Re: 1979 70HP Johnson Tachometer

Does anyone out there have a tachometer for this engine? 1979 Johnson 70 HP

 

[BonairII]

Re: 1979 70HP Johnson Tachometer

I use this one for my 1977 75hp Evinrude....

http://www.google.com/products/cata...XkzET6j0IPHH0AGa_4zjCg&sqi=2&ved=0CLsBEPMCMAQ

 

[marcusknight]

Re: 1979 70HP Johnson Tachometer

How accurate is it? Would I have to buy any linkage for it?

 

[BonairII]

Re: 1979 70HP Johnson Tachometer

Just connect 3 wires (4 if you want it to light up at night). I would assume it's very accurate cause it's new.

 

[marcusknight]

Re: 1979 70HP Johnson Tachometer

Are tachometers pretty standard for outboards or are they all calibrated differently and have different wiring configurations?