Tachometer wiring up

[Realgun]

I will be installing a tach, speed, volt, and fuel instruments in my boat. I want to turn the backlights on and off on the instruments.<br />The Volt has a + and - for the light but the tach, Fuel, speed does not. They also say they energize from the ignition switch.<br /><br />How is this wired can you help?<br /><br />Instruments are Faria Pro Red.

 

[Laddies]

Re: Tachometer wiring up

Realgun, some gauges don't have a seperate circurt for the lights if thats the case your stuck with it, some you can remove a bond strap and add another wire to and seperate the circurts and I know of one guy that went into the area where the bulbs pluged in and altered the circurt there, keep in mind that voids the warrenty---Bob

 

[Realgun]

Re: Tachometer wiring up

The tach speedo and fuel have only a + for a wire can that come from a switch so I can turn the light on and off? Or will that mess up the tach function ie: turn on light and tach works turn off light tach she no work. LOL <br /><br /> Manual for the fuel guage.<br /> Manual for the tach.

 

[gaugeguy]

Re: Tachometer wiring up

Hi Realgun,<br />From the manual links you posted, they show a lamp connection as a blade terminal. The ground connection is a stud,that will be common for the instrument circuit as well as the lamp circuit. Wire the blade terminal to the light switch and the instrument "+" to the ignition switch and you should be good to go.<br /><br />The answer to your question is no you don't want to do that as the instruments will only work when you turn the light switch on.

 

[Laddies]

Re: Tachometer wiring up

Realgun, Gaugeguy is exacly right, but thats not what I am posting for, how the heck do you post the pictures I have tried but I guess I'm not smart enough to figure it out---Bob-- if you are trying to get away from night glare with the gauges put them on anoughter switch

 

[Realgun]

Re: Tachometer wiring up

Let me ask this then.<br />Battery is on the guage and ignition is showing on that post.<br />So does that mean the ignition/battery mean +12V?<br />If so does that means there are 2 circuits with a common ground?<br /><br />Hopefully yes.<br /><br />I might just call Faria.<br /><br />Laddie you need to have a place that hosts the pictures first.<br /> There are lotsa free sites.<br />You will need to upload your picture(s) to that site.<br />If you can see those picture you should be able to post them here.<br />Shareaproject is cool look at my signature. then<br />Click full reply form.<br />Then you need to click IMAGE lower left column.<br />In this box you will need the address of the picture some sites have a button you need to press and it will give you the address so you can post to autions etc. Copy this address to the box. <br />I removed the pic thank you.<br />And then click add reply. I highly suggest you just post a link to the picture as it will be easier on the people with dialup to view the post.<br /> Here is the slide show view of my ongoing saga. Loads of pictures and not taking space up here.

 

[gaugeguy]

Re: Tachometer wiring up

Originally posted by Realgun:<br />So does that mean the ignition/battery mean +12V?<br />If so does that means there are 2 circuits with a common ground?<br /><br />Hopefully yes.<br />

You got it