I have an 83 60hp Evinrude that I control with this:
There is a 3 hole plug below the key, do I just need a plug for a tach (and the tach)?
Where might I find a model number for these controls and who might have a plug?
Also, I'm guessing the rusty piece "pop riveted" over the safety switch is not original to the boat.

There is a 3 hole plug below the key, do I just need a plug for a tach (and the tach)?

Where might I find a model number for these controls and who might have a plug?
Also, I'm guessing the rusty piece "pop riveted" over the safety switch is not original to the boat.