Fuel Gauge etc., etc.


Information and questions on GL1500 Goldwings (1988-2000)
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WingAdmin
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Re: Fuel Gauge etc., etc.

Post by WingAdmin » Fri Mar 22, 2013 6:37 pm



virgilmobile wrote:Side note....attached to the fuel pump assembly is the low fuel sensor...BUT the fuel level float Thingy that operates the fuel gauge is attached to the left side of the fuel tank.It is a separate part.On the 88 that is.
Oh, you're right. It's the same on the 2000. I should have remembered that, knowing how many times I took that thing out! The sender is mounted on the side of the tank, near the top, on the left side. The piece we took out has just the low fuel sensor and the fuel pump.



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WingAdmin
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Re: Fuel Gauge etc., etc.

Post by WingAdmin » Fri Mar 22, 2013 6:40 pm

I calibrated my low-fuel sensor to illuminate when there was exactly 1 gallon USABLE remaining (Oh, and the warning light is amber, not red!). When that light starts flashing, I assume I have 30 miles left until I'm at the side of the road.

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Dusty Boots
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Re: Fuel Gauge etc., etc.

Post by Dusty Boots » Fri Mar 22, 2013 7:03 pm

WingAdmin wrote: (Oh, and the warning light is amber, not red!).

Yup ... my bad! :oops: This winter has been so long up here, I forgot what colour it was! :roll:
:idea: Where is that lying little groundhog anyways!!! :x


PS ... the light glows, does not blink :)

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Re: Fuel Gauge etc., etc.

Post by Wingsconsin » Fri Mar 22, 2013 9:43 pm

Dusty Boots wrote:You'd be better off losing your fixation on the fuel gauge. Use it as a reference and learn to utilize your trip meter for refuel time. Best to leave the float alone, or else you'll introduce further confusion!
When you run over 60-65 mph expect your fuel economy to drop off. It doesn't matter how many RPM you're turning over, it's the amount of power needed to overcome the aerodynamic drag of pushing such a large frontal area through the air. Keep it below 60-65mph and less power(<fuel) needed to push it.
I once had to start hunting for fuel with only 135km/85mi showing on the trip meter while running I-90 through WY, but I won't tell you how fast I was running. Does the term WFO mean anything? :lol:
This is wisdom based on Experience...sound familiar?
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drebudrebu
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Re: Fuel Gauge etc., etc.

Post by drebudrebu » Tue Jun 04, 2013 6:13 pm

I always run until the red light comes on and then go up to 20 more miles. Have never run out. Today I was at 203 miles before the light came on. When pushing it that far I make sure that I know where the next station is. If I was in uncharted waters, I would be more cautious. As for actual mileage I usually get around 36 but have gotten over 40. Like someone else said. The aerodynamics of the big windshield and fairing make a huge difference. On my 87 Virago 700 I could get 48 mpg but it had no windshield. Won't ever go back to something without windshield again.

rexles
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Re: Fuel Gauge etc., etc.

Post by rexles » Sat Jun 15, 2013 6:34 pm

My 95 used to have a pretty accurate fuel gauge. Just recently it started going down faster than it used to. I checked my mileage this last tank and got a tad over 35mpg. My gauge is way below the red zone when my fuel light comes on. I guess this is just common for the 1500s the way it looks.

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tandem54
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Re: Fuel Gauge etc., etc.

Post by tandem54 » Thu Jun 20, 2013 1:04 pm

The fuel gauge is a good reference but I always go by mileage.
The low fuel light on my 1500 comes on at 200 miles
So I always look for gas at 175 miles just in case!!
(sometimes I push it a little farther, I just don't want to HAVE to push it LOL!!)
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Re: Fuel Gauge etc., etc.

Post by redial » Thu Jun 20, 2013 7:33 pm

A bit off topic, but, I run a Honda 250CDU (the UK will recognise this but not N.America), that I use to go up to the village shops. I had to wait for some medications to be dispensed, so went and checked the tyres and refuelled. It was interesting that the odometer was showing 99.8 Kms, and when I had filled it, it showed that I had used 4.7 litres (about 1 Imp Gallon for the 62 miles) for the 100Km that it had been used. I only travel about 3Km (about 2 miles) return journey for these trips, so there is a lot of starting and stopping going on. At highway speed of 100Km/h (about 60 miles per hour), I can get about 200 Kms out of the tank, and it will take about 8 litres (2 US Gallons). Much cheaper than running the car, and fuel is currently $1.55/litre (about US$6.00/USgallon).
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Re: Fuel Gauge etc., etc.

Post by waynedudes » Thu May 11, 2017 7:19 am

I have the same problem! At a little over 100-130 miles the gauge reads empty. I can fill up with around 3 gallons? Would replacing the gauge or getting a different gauge possibly fix this? Are there more accurate gauges out there?

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someone548
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Re: Fuel Gauge etc., etc.

Post by someone548 » Thu May 11, 2017 7:01 pm

Odd. I normally get 40-44 MPG on my 95 I think the lowest I've even seen is about 38 or so.

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Re: Fuel Gauge etc., etc.

Post by waynedudes » Fri May 12, 2017 7:04 am

I am riding a 94 GL 1500 with CSC Trike. Quite a bit more weight than two wheel 1500.

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Re: Fuel Gauge etc., etc.

Post by Erdeniz Umman » Sun May 14, 2017 8:59 pm

It is a common issue on the GL1500 fuel gauges.
You could bend the float arm down to read the level correctly.

Remove the seat,
Remove the fuel pump,
Locate the float arm with your left hand while your body facing backwards,
Bend the float arm with your thumb while holding the arm with other fingers,
Check the gauge and repeat it until the gauge reads correctly,

When calibrating mine, I emptied the tank completely and added 4lt of fuel (fuel light should come on in 3 min when the fuel pump is reinstalled), and bent the float arm so that the fuel gauge will read just below E line.

After that, I checked the gauge while refueling and it read correctly as I added 5-10-15-20 liters of fuel (24 liters total).

After this calibration the fuel gauge will show Full and stay there for the first 100km (60mil), and then will start showing correctly for the rest, which is more important for us.

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Re: Fuel Gauge etc., etc.

Post by KerryOkie » Sun Nov 24, 2019 1:56 pm

I think my gauge is bad. Is there a way to repair it or find a sub that will fit? Its an 88 gl1500. I had to change out all bulbs and repair plastic. It was working before i took it off. I dont know if it was accurate however. I did the test on gauge and when unplugged at sensor it showed empty. I shorted the plug and it read 1/4 tank. It should have shown full. It looks like the tank is half full.
So... I was hoping just to replace gauge any subs or part numbers??
If i tear into cluster again if like it to ne my last time. Lol

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Re: Fuel Gauge etc., etc.

Post by newday777 » Fri Nov 29, 2019 9:18 am

KerryOkie wrote:
Sun Nov 24, 2019 1:56 pm
I think my gauge is bad. Is there a way to repair it or find a sub that will fit? Its an 88 gl1500. I had to change out all bulbs and repair plastic. It was working before i took it off. I dont know if it was accurate however. I did the test on gauge and when unplugged at sensor it showed empty. I shorted the plug and it read 1/4 tank. It should have shown full. It looks like the tank is half full.
So... I was hoping just to replace gauge any subs or part numbers??
If i tear into cluster again if like it to ne my last time. Lol
You say 'Sub'???
Do you mean substitute???

The gauge is fine. The float in the tank is the problem. You'll need to adjust the rod the float is attached to. A very common problem on the 1500s.
The best way is to drain the tank of all the gas, a siphon pump works. Put in just a tad over 3 gallons gas. Bend the rod to make the gauge read 1/2 tank. You can pull the fuel pump out under the seat(after the tank is below 1/2 full or you'll have a gas flow all over through the pump hole). Inspect the tank while the pump is out for rust and chunks of debris, clean out as necessary.

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Re: Fuel Gauge etc., etc.

Post by KerryOkie » Fri Nov 29, 2019 10:55 am

Yes a cross reference to another fuel gauge that would work.
Its not the sensor float. I had it out and checked it. If you raise the float while connected the fuel gauge reads 1/4 full. Just like when you short the pin wires. Which again should read full. Im looking to replace with a new gauge but not sure the one i need that will work and fit.

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Re: Fuel Gauge etc., etc.

Post by newday777 » Fri Nov 29, 2019 11:14 am

KerryOkie wrote:
Fri Nov 29, 2019 10:55 am
Yes a cross reference to another fuel gauge that would work.
Its not the sensor float. I had it out and checked it. If you raise the float while connected the fuel gauge reads 1/4 full. Just like when you short the pin wires. Which again should read full. Im looking to replace with a new gauge but not sure the one i need that will work and fit.
I don't know of any others to fit. No aftermarket were made to replace the fuel gauge.

Used is your only option. 1988-1997 are the same. In 1998 and 1999 Honda changed to a white face and in 2000 went back to the black faces. You can use those also.

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Re: Fuel Gauge etc., etc.

Post by KerryOkie » Fri Nov 29, 2019 12:08 pm

Ok, great info. Thanks

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1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

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1999A Restored from PO neglect & sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Fuel Gauge etc., etc.

Post by newday777 » Fri Nov 29, 2019 12:12 pm

I had a fuel and oil pressure set from a 99 but might have sold them already. I just got back from 6 months on the road so not sure if I still have them. I haven't looked in that box in months.

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Re: Fuel Gauge etc., etc.

Post by AZgl1800 » Fri Nov 29, 2019 6:04 pm

when you are ready to install the gauge.

With an Empty Tank, pour in exactly 3.0 gallons of fuel.

Now, reach in through the fuel pump opening with your right hand, towards the left front.
Find the float arm, and move it up and down until you get a sense of where it should be for 1/2 tank reading on the Fuel Gauge.

Bend the rod so that the gauge will read exactly 1/2 tank.

Now you have a gauge that will read almost linearly right down to zero fuel at the Red Line.
It is so accurate that you can safely ride to a gas station with only 1/8 tank gas on that gauge.

I have done this twice, and much prefer it to the way Honda made it read, which is ridiculous.... showing near empty with 3 gallons remaining??

what do you care that the first 100 miles shows 'Full' on the gauge, you know it don't matter, because when it finally drops to 1/2 tank, you know that you have Exactly 3.0 gallons remaining.
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KerryOkie
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Re: Fuel Gauge etc., etc.

Post by KerryOkie » Fri Nov 29, 2019 6:30 pm

AZ.... Exactly ! Soon as i know the meter is working thats what i will do. Thanks.

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KerryOkie
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Re: Fuel Gauge etc., etc.

Post by KerryOkie » Wed Dec 18, 2019 7:30 pm

I am not positive if my gauge is faulty. I have checked every i have read and watched. My question is.. what is the voltage supposed to be going to the gauge? When i unplug sensor float and read voltage i have about 4.3 volts. Should i read 12 volts? It comes from relay 3. But i have not found reference to what it is supposed to be. Again, sensor test is good. Gauge disconnected reads empty, full reads 1/4 tank.

Last information is this is on an 88 goldwing Gl1500
Thanks for your input.
Kerry

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Re: Fuel Gauge etc., etc.

Post by bellboy40 » Fri Dec 20, 2019 3:09 pm

Kerry, you said your fuel gauge worked before you replaced the lamps. You may not have gotten the connectors seated properly behind the instrument panel when you put it back together. The fuel sender wiring goes through a couple of those connectors, so I would advise you to take it back out and check C66 (20 pin white) and C108 (6 pin white) connectors for being plugged together well and no corrosion or bent pins etc. Since it the fuel gauge was working before, and not after, you worked in that area, that is where you trouble likely is. Here is the wiring diagram for the 2000 model and the 88 is probably very similar if not the same.

GL2000 gauges wiring
GL2000 gauges wiring




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