how do i hook up a rpm gauge????

[mikejallen]

I have a 16ft 73 bass cat with73 85 horse merc the rpm gauge not working any suggestions on how to hook one of these up thanks??

 

[Puddy905]

Re: how do i hook up a rpm gauge????

I will take a pictures of where the sender attaches to and post it, unless someone else has one....otherwise the bat and grd are self explanitory. I just changed motors and went through the same thing with an 82 merc 115.

 

[mikejallen]

Re: how do i hook up a rpm gauge????

Thanks that would be great if you had pics.

 

[Puddy905]

Re: how do i hook up a rpm gauge????

Sorry. Forgot to do it today. I will do it tomorrow night.

 

[Moody Blue]

Re: how do i hook up a rpm gauge????

If you have an existing tach just mark the wires then remove them and hook up to a new tach.

There will be three wires. Gnd, +12V and signal. If you have illumination for other gauges then you will also have a wire for the backlight illumination.

 

[mikejallen]

Re: how do i hook up a rpm gauge????

thanks i wiil try that tomorrow

 

[Puddy905]

Re: how do i hook up a rpm gauge????

Hey...sorry for the delay. Hope these work. The blue wire is the one you want to hook up.