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Fuel Gauge

Started by Redhawk, February 15, 2018, 04:48:20 PM

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Redhawk

Just 2 weeks ago my new Sierra Eclipse fuel gauge came and it has a backlight on it. How would I wire the backlight? So far, this is the diagram I have found. Would this wiring setup work? The fuel sender it will be running with is a 7" WemaUSA SSL
http://www.arimaowners.com/gallery/10/9512-150218164014.jpeg
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Fisherdv

2018 Sea Chaser 16, Honda BFP60

Fisherdv

Yes, that should work. It should light up from that ignition wire when the key is switched to "on"
2018 Sea Chaser 16, Honda BFP60

Redhawk

Quote from: Fisherdv on February 15, 2018, 05:17:31 PM
Yes, that should work. It should light up from that ignition wire when the key is switched to "on"
Sweet! Thanks!
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Redhawk

A few other questions: How would one go about hooking it up to turn on when the switch is turned on? Will the fuel gauge turn on or just the light?
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

DevMah

#5
Quote from: Redhawk on February 15, 2018, 09:18:17 PM
A few other questions: How would one go about hooking it up to turn on when the switch is turned on? Will the fuel gauge turn on or just the light?

From the ignition both

Just make sure your ignition is fused (they usually are)

Dev
2015 21' Sea Ranger w 150 Yammy  (Tight lines) Sold
2012 Lund 1650SS  w 2012 60HP Mercury-Sold

Fisherdv

If your asking how to find an ignition wire it's usually a purple wire from the harness or a grey wire off of a gauge (tach, speedo, etc). Not knowing what your working with or how old your wiring is or who wired it this may be different. You could also find an on/off keyed ignition wire with a test light if unsure. See if a wire you suspect powers only when the key is turned on. You may also be able to get an ignition feed from one of your current gauges. Probe the lugs on the back with the test light if your unsure which wire is fed from the ignition
2018 Sea Chaser 16, Honda BFP60

Redhawk

Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Redhawk

What should I do if there is no purple wire? The previous owner did not have the best knowledge of electrical systems so I am not sure if the wire has been cut short, disconnected, etc. If it is not there or is too short to make any connection to? In that case should I/would I be able connect it to a fuse block and then to a fuse or would that be a bad idea? Is there any way to add purple wire wire to the harness?
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Fisherdv

Do you have any gauges on your dash now?
2018 Sea Chaser 16, Honda BFP60

Redhawk

There is a tachometer but the previous owner cut all the wires. There was also an old fuel gauge but nothing was hooked up.
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Fisherdv

#11
Put a test light to the wires in back of the key/ignition switch and see which wire feed only lights with the key in the on position, or see if there's any unused wire coming from the control box, if so test those
2018 Sea Chaser 16, Honda BFP60

GregE

A tone tester can be your continuity friend
Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Redhawk

Quote from: Fisherdv on February 16, 2018, 12:37:45 PM
Put a test light to the wires in back of the key/ignition switch and see which wire feed only lights with the key in the on position, or see if there's any unused wire coming from the control box, if so test those
So take off the throttle controls, open it up, pull the ignition switch, and test the wires to find which is the positive and which is the negative, then wire accordingly?
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

DevMah

Can you post some pictures of the ignition and rear of the dash.

And then give us the make model of the motor.

To find the ign wire first you must find the B- and the constant B+. Then you if you keep the B- connected you can probe the other wires to see which one is switched on and off.

Dev
2015 21' Sea Ranger w 150 Yammy  (Tight lines) Sold
2012 Lund 1650SS  w 2012 60HP Mercury-Sold

Fisherdv

Quote from: Redhawk on February 16, 2018, 05:01:50 PM
Quote from: Fisherdv on February 16, 2018, 12:37:45 PM
Put a test light to the wires in back of the key/ignition switch and see which wire feed only lights with the key in the on position, or see if there's any unused wire coming from the control box, if so test those
So take off the throttle controls, open it up, pull the ignition switch, and test the wires to find which is the positive and which is the negative, then wire accordingly?
NO, not yet. As Dev suggested take some pics and the make, model, year of the motor
2018 Sea Chaser 16, Honda BFP60

Fisherdv

Is your key on the throttle control box or separate on the dash?
2018 Sea Chaser 16, Honda BFP60

First Cabin

I put all my gauge lights on a switch.  No need to have them on during the day and sometimes when running at night it's better to turn them off and eliminate the glare.
First:  1982 15' SeaHunter, Yamaha 70 2-stroke, Yamaha F6
Second:  1987 17' SeaRanger, Merc 90 2-stroke, Yamaha F8
Current:  2002 17' SeaChaser, Yamaha F100, Yamaha T8

Omega3

The switch is a good idea.I cover my gauges with a towel when it's dark the glare kills my night vision.
05 Sea Ranger 19  05 Evinrude 135 DI   17 Yamaha F8

Fisherdv

Yup, if all else fails just run it to the fuse box with a switch
2018 Sea Chaser 16, Honda BFP60

DevMah

Quote from: Omega3 on February 16, 2018, 06:35:04 PM
The switch is a good idea.I cover my gauges with a towel when it's dark the glare kills my night vision.

Usually we wire all the gauges to your light circuit. If it's to bright you can add a dimmer.

https://www.westmarine.com/buy/cole-hersee--electronic-dimmer-switch--5369673?recordNum=1


Dev
2015 21' Sea Ranger w 150 Yammy  (Tight lines) Sold
2012 Lund 1650SS  w 2012 60HP Mercury-Sold

Redhawk

Quote from: Fisherdv on February 16, 2018, 05:45:19 PM
Is your key on the throttle control box or separate on the dash?
Sorry for the late reply, we were up at the boat. It is a 1970s Evinrude 70HP 2-stroke with OMC controls. It didn't have any additional wires on the harness so I ended up wiring it up to the fuse block. The key is on the throttle control box.
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Redhawk

I will try to get some pictures of what I ended up doing next time I am up there.
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke

Fisherdv

Did you put a switch so you can turn it off?
2018 Sea Chaser 16, Honda BFP60

Redhawk

Quote from: Fisherdv on February 18, 2018, 06:20:39 PM
Did you put a switch so you can turn it off?
Yup! The previous fuel gauge set up that was in the boat when we got it didn't have a switch so it would run down the battery. Wasn't going to deal with that again!
Sparhawk:
1983 Tiderunner 150 Cuddy
1995 Mercury 60 2-stroke
1984 Evinrude 6 2-stroke