1985 Johnson 70 Plug unhooked at controls?

[IM Buddy8]

Can someone tell me what this plug is for? I see the wire and plug that goes into this but it's been unplugged since I bought the boat. The plug has three prongs but only one is in use and it is purple.



Thanks,
Ryan

 

[Daviet]

Re: 1985 Johnson 70 Plug unhooked at controls?

Does your boat have a tac in it, it looks like the harness connector for a tac.

 

[phillnjack2]

Re: 1985 Johnson 70 Plug unhooked at controls?

that is definitely the tach plug.
same as mine, so should be 3 wires behind the plug !!!!!!!!!!!

POSITIVE (purple)
NEGATIVE/GROUND (black)
PULSE (GREY)


phill........

 

[PensacolaJason]

Re: 1985 Johnson 70 Plug unhooked at controls?

Pardon my ignorance, but what is that knob between the ignition and the tach?

 

[larky]

Re: 1985 Johnson 70 Plug unhooked at controls?

It's the throttle friction adjustment.

 

[IM Buddy8]

Re: 1985 Johnson 70 Plug unhooked at controls?

I don't have a tach.. I have a trim gauge, but I don't know if it works. Haven't had the boat long and never look at it, it's kind of pointless in such a small boat IMO but whatever.

I wonder why the plug is there and the boat motor has one too. It's the original outboard so I'm not sure why they would wire the boat with a tach plug when it doesn't have one.

 

[Daviet]

Re: 1985 Johnson 70 Plug unhooked at controls?

The control box comes pre-wired to fit all the engines. If you have a tac, as anoption, all you have to do is plug it in.