Need Help 1991 gl1500 no gas from fuel pump


Information and questions on GL1500 Goldwings (1988-2000)
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Brett1991
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Motorcycle: 1991 GL1500SE Goldwing

Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Wed Aug 06, 2014 7:48 pm



Hey all,
I just recently acquired a 1991 GL1500SE from my uncle. He said he was riding and it started cutting out. He thought the fuel level was low so he put in more gas. He said that seemed to fix it for a while, then it stopped running. He has replaced the fuel pump with a new one but the gas doesn't pump out of it. We have a small bottle hooked to the fuel line but no gas comes out. . . any thoughts or ideas?



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Fiberthree
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Fiberthree » Wed Aug 06, 2014 10:30 pm

Is the fuel line clear? Have you changed the fuel filter? One or the other or maybe both could be plugged with sediment.
Ed

WARNING: All posts are subject to influence from an uncontrollable dominant sarcastic gene. Offensive remarks may or may not be intentional.

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dingdong
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby dingdong » Thu Aug 07, 2014 7:41 am

When you turn the key on the fuel pump will run for a second or two to prime the system. Unless the bike is started the fuel pump will not run after that. The fuse / relay boxs are on the left side sitting on the bike behind the saddle bag and fuse # 2 supplies power to the fuel pump along with power to Ign. and other things. The fuel pump relay is located behind the right saddle bag. Kill switch has to be on also. The bank angle sensor supplies a path to power through ground to the pump. Also check the connectors under the seat on top of the fuel tank.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

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HawkeyeGL1200
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby HawkeyeGL1200 » Thu Aug 07, 2014 3:57 pm

No owning a 1500, I have no experience with the fuel system, however, I have read where in some cases the fuel tank becomes more or less vapor locked (under negative pressure) and the pump CAN have difficulty moving fuel if that is the case. I would definitely check the items dingdong mentioned. Fuel filter and or fuel line blockage and of course the pump not getting any electricity will definitely make it operate poorly if at all.
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Fri Aug 08, 2014 4:38 am

No matter what I try I can't get a sound from the fuel pump. Is there a way to force it to pump?

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virgilmobile
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby virgilmobile » Fri Aug 08, 2014 7:52 am

Yes.Under the seat is the fuel pump connections attached to the top of the tank.One wire can be unhooked and 12 volts (fused at 5 amp) can be attached to the connector on the tank.
If I remember correctly,there's 3 wires.
Ground,low fuel lamp and the pump power.I believe the pump power also has another wire attached to it.Its a little black thingy ( noise filter).
Sorry I don't have a schematic to tell the code but test probe the wire.It should have volts while cranking (assuming there is spark) and also for a few seconds when first keyed on.
Don't forget,if there's no spark,the fuel pump will never operate.

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dingdong
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby dingdong » Fri Aug 08, 2014 8:21 am

Referencing Virgil's post above. The power to the pump is a black/blue wire marked B on the tank cover. Apply 12v power there and if the pump is good it will run.
Another thought. Have you tested the vacuum operated fuel shutoff valve in front of the gas cap? If it isn't working ....no fuel flow.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Sat Aug 09, 2014 4:22 pm

Well fellas here is an update. Tested all electrical components . . . all seem fine. Put voltmeter to leads on fuel pump. Getting 11.2+ volts to fuel pump . . . still not a peep. Leads me to believe the fuel pump is bad. $360 out the window. Is there any way to get this supposed dead pump working?

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HawkeyeGL1200
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby HawkeyeGL1200 » Sat Aug 09, 2014 4:47 pm

dingdong wrote:Another thought. Have you tested the vacuum operated fuel shutoff valve in front of the gas cap? If it isn't working ....no fuel flow.


This is something I had not considered until reading dingdong's message... It is definitely worth checking before spending any money.

Before I spent a dime, I'd pull the outlet side hose from the pump and route it to a can or bucket to see if any fuel comes out when turning the key on as well. (After making sure the petcock works)
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Sat Aug 09, 2014 6:11 pm

Before I spent a dime, I'd pull the outlet side hose from the pump and route it to a can or bucket to see if any fuel comes out when turning the key on as well. (After making sure the petcock works)

Read more: viewtopic.php?f=6&t=23338#ixzz39wJI1i52


It's already configured like that . . .

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virgilmobile
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby virgilmobile » Sat Aug 09, 2014 10:33 pm

From here I'd make sure there's less than half a tank of gas and remove the pump and have a look.
You mentioned that someone replaced the pump.Did that one ever work?
Is it possible the electrical connection inside the tank is bad.?
Perhaps the wrong pump installed?
Have a look see.let us know what you see.And yes you can even put 12 volts right to the pump wires to test it.
If its dead and you have to replace it,tear that one apart and find out why it quit.
Torn filter and the impellers seized.? Sometimes repairable and even if its not,look around this site for a replacement pump.Ive heard a $60 pump from a older honda car with a carb works just as well as the $360 one from the dealer.i guess the pump doesn't care if its in a bike or car as long as it meets the pressure and flow specs.

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HawkeyeGL1200
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby HawkeyeGL1200 » Sun Aug 10, 2014 7:16 am

virgilmobile wrote:Ive heard a $60 pump from a older honda car with a carb works just as well as the $360 one from the dealer.i guess the pump doesn't care if its in a bike or car as long as it meets the pressure and flow specs.


The "Carb" engines (1200's anyway) can use any 12v "external" pump that flows 18-30 GPH at 3-5 psi. I have a "spare" I bought for 15$ off Ebay, for "emergency" use, as it doesn't fit in the nice holder that the original pump slides into. I have read where many people use a 1985 Honda Prelude fuel pump in a GL1200 with success.

I am not familiar with the size, location and fuel output of a 1500 fuel pump, but I imagine a creative person can find a (nearly) direct replacement somewhere. Chances are, Honda does not make their fuel pumps, and there is a builder of these pumps who makes them all for a "production run" of bikes, and who will probably sell a fuel pump for 50 cents on the dollar for what Honda charges for one.

The pressure/flow requirements for fuel injected engines, and as far as I know none of the GL1500's is fuel injected, are far different for carb engines. Fuel injected engines (Goldwings) require 70-95 PSI output from the fuel pump... I know because I looked it up... and even they are available "after market" if you search long and hard enough.

If someone will provide me with the Honda part number for this year model GL1500 fuel pump, I'll research it to see if there is a less expensive replacement.
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

Brett1991
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Motorcycle: 1991 GL1500SE Goldwing

Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Mon Aug 11, 2014 7:05 pm

ordered a new fuel pump and will install per these instructions:

http://www.goldwingfacts.com/forums/2-g ... y-fix.html

let you know how it goes . . .

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Fri Aug 15, 2014 4:46 am

Well, it's pumping gas now. Separate question: Is there a drain plug on a gl1500 gas tank?

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Sat Aug 16, 2014 3:15 pm

How do you test the fuel shutoff?

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Sat Aug 16, 2014 5:02 pm

Bypassed the fuel shutoff; now it's running somewhat. Just need to get the carb cleaner burned out of it. Now I need to replace either the shutoff or the vacuum lines. Or maybe I need to go to an electric shutoff . . .what do you guys think?

Brett1991
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby Brett1991 » Sun Aug 17, 2014 4:18 pm

Update - - removed air filter, slides weren't moving at all sprayed carb cleaner. Now not only does it idle (sometimes) but it revs also. Will be riding soon!

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tumunga
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Re: Need Help 1991 gl1500 no gas from fuel pump

Postby tumunga » Sun Aug 17, 2014 11:25 pm

HawkeyeGL1200 wrote:No owning a 1500, I have no experience with the fuel system, however, I have read where in some cases the fuel tank becomes more or less vapor locked (under negative pressure) and the pump CAN have difficulty moving fuel if that is the case. I would definitely check the items dingdong mentioned. Fuel filter and or fuel line blockage and of course the pump not getting any electricity will definitely make it operate poorly if at all.


Not trying to be a smart-ass, but I've owned my 1500 since May of this year, and I've never heard the fuel pump prime up when I turn the key on. Now, on my 2003 Victory, that fuel pump was a loud one. It primed up for almost a second after I turned the key on. I've never heard it on my 89.
Tumunga
1989 GL1500 Goldwing with all the optional goodies (I think)

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tumunga
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Motorcycle: 1989 GL1500 - this is the one I will always need help with.

1980 GL1100I Interstate (gone)

Re: Need Help 1991 gl1500 no gas from fuel pump

Postby tumunga » Sun Aug 17, 2014 11:29 pm

Brett1991 wrote:Well fellas here is an update. Tested all electrical components . . . all seem fine. Put voltmeter to leads on fuel pump. Getting 11.2+ volts to fuel pump . . . still not a peep. Leads me to believe the fuel pump is bad. $360 out the window. Is there any way to get this supposed dead pump working?


Found this on another website. Do with it what you will, sir.

http://www.goldwingfacts.com/forums/2-goldwing-technical-forum/388784-gl1500-fuel-pump-replacement-napa-p72190-pump-easy-fix.html
Tumunga
1989 GL1500 Goldwing with all the optional goodies (I think)

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tumunga
Posts: 97
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Motorcycle: 1989 GL1500 - this is the one I will always need help with.

1980 GL1100I Interstate (gone)

Re: Need Help 1991 gl1500 no gas from fuel pump

Postby tumunga » Sun Aug 17, 2014 11:31 pm

tumunga wrote:
HawkeyeGL1200 wrote:No owning a 1500, I have no experience with the fuel system, however, I have read where in some cases the fuel tank becomes more or less vapor locked (under negative pressure) and the pump CAN have difficulty moving fuel if that is the case. I would definitely check the items dingdong mentioned. Fuel filter and or fuel line blockage and of course the pump not getting any electricity will definitely make it operate poorly if at all.


Not trying to be a smart-ass, but I've owned my 1500 since May of this year, and I've never heard the fuel pump prime up when I turn the key on. Now, on my 2003 Victory, that fuel pump was a loud one. It primed up for almost a second after I turned the key on. I've never heard it on my 89.


In my drunkenness, I've probably resurrected a zombie thread, eh?


Tumunga
1989 GL1500 Goldwing with all the optional goodies (I think)


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