Tachometer

Looking to get a tach for my newly rebuilt 1994 Johnson 50/35 jet. Not sure where to find one. Any suggestions? How would I wire one to my motor? At the control box, or motor? Thanks!!

Well that depends on whether your engine is a tiller or a remote control
Also depends on who's control box if it is a remote engine.

It's remote with a NOS OMC remote without tilt/trim.

It should have a yellow and gray wire already to your console, that will be your tach signal. If it doesn't it should be located on the bus bar on the side of the engine. You will also have to have a ground and a wire that comes on with the other lights in your instrument cluster. If you don't have any other gauges you can check and just source a wire that is hot when your switch is on for your light.

Then just buy an OMC tach or a suitable aftermarket gauge. Pay attention to the instructions on the tach especially if you go aftermarket. It will have a little dash pot on the back of it with settings something like 1-5. The instructions will tell what settings to set it for your corresponding make motor and #of cyls.

There will be no yellow/gray at the console.
That wire changes to a solid gray in the boat harness and terminates at the console or dash. That is your tach. wire.
In addition you will need to pull key on power from the key switch or another instrument. That wire color will be purple.
Add your ground (black) and you are done.
If you want instrument lights then the wire color is blue.