Needing some help...fuel pump?


Information and questions on GL1500 Goldwings (1988-2000)
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minimac
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Needing some help...fuel pump?

Postby minimac » Mon May 05, 2014 1:13 pm



I'm working out of town and have very limited access to a computer right now, or I'd search myself- but I can't. I need to find a good equivalent replacement fuel pump for my '93 Wing. I've heard of a NAPA one, a pump for a Chevy celebrity, a pump for a Fiesta, etc., . I would like to cut through all the baloney on the 'net and find out what REAL Wing owners have used successfully. Occasionally, my bike will seem like it's starving for fuel after a sustained run at highway speeds. It doesn't die, it just starts blubbering a bit and losing power. I originally thought bad gas, but it wasn't. I then changed the fuel filter, but that didn't help. Now, I think I've narrowed it down to my 21 year old fuel pump. Any other suggestions, or am I on the right track? Thanks



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WingAdmin
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Re: Needing some help...fuel pump?

Postby WingAdmin » Mon May 05, 2014 1:19 pm

Have you checked your fuel filler cap? When your bike starts losing power, try loosening your fuel filler cap and see if the power comes back.

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virgilmobile
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Re: Needing some help...fuel pump?

Postby virgilmobile » Mon May 05, 2014 2:56 pm

Here's a bit of information that might be helpful.....
vargas35@live.com » Sat Aug 25, 2012 9:03 am
Put the Accord pump in my 89' 1500 this past weekend. Pumps fine so far, only complaint is that it is a tad bit noisier than the OEM.

MikeB>>
What the problem was with my Aspy was the Auto Fuel Valve.you can always bypass the valve and ride it without the valve until you get it rebuilt or replaced.
Or the vacuum line that operates it from the right rear manifold may be leaking...

furnacedoc » Sat Mar 05, 2011 5:49 pm
I had the same issue on My 97 1500se so I soaked the gas cap in seafoam overnight then blew it out with an air hose and have not had antother issues.

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Wingsconsin
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Re: Needing some help...fuel pump?

Postby Wingsconsin » Mon May 05, 2014 3:43 pm

Is your fuel tank below 1/2 empty when this happens..
My experience with the fuel pump (I replaced mine 2 years ago) is that the conditions to show a weak pump are:
Less than 1/2 full -- Excess heat -- High RPMs
The bike will cut out starved for fuel . Then a refill with fuel 'fixes' the problem.
My understanding is that the fuel will largely gravity feed and flow while 1/2 full or more , but at less the fuel pump does all the work. The fuel heats up and doesn't cool the pump and the weak pump can't move enough fuel. Cool fresh fuel cools the pump and the bike can run fine again. - These are the symptoms to be aware of for a weak pump. The test is outlined in the service manual, and the pump must move the fuel 12" above the filler neck to validate the test.
I replaced mine with a 'kit' sold by a fella from Texas - but he is not doing these anymore.
OEM are still available in the entire assembly from Honda - be sure to buy a new gasket if you are going into the fuel tank - and be sure the tank ahs less than 1/2 full or it will be a mess....
If these conditions are not present than it is likely a different problem.
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


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ct1500
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Re: Needing some help...fuel pump?

Postby ct1500 » Mon May 05, 2014 7:59 pm

Yup, failing pumps will typically show up after extended highway riding in high ambient temps with low fuel levels. Can cause a stall and will restart when pump cools a bit.

Your problem is likely the auto fuel valve. Check for proper vacuum supply to it. With a vacuum pump attached to valve pull a vacuum on it, should hold rock solid. Then finally with vacuum attached blow with breath of air thru valve with fuel hoses disconnected same direction as gas flow, should be free and clear.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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minimac
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Re: Needing some help...fuel pump?

Postby minimac » Mon May 12, 2014 8:57 am

Thanks for the responses! I finally got some time to further pursue the issue I was having. It turned out to be the fuel filter, yet again. I changed the filter 2-3 months ago but apparently I got some bad gas somewhere. The filter was all gunked up again. I drained the tank and got a bit of what looked like dirt out of it. I flushed the tank thoroughly, installed a new filter, and all seems well. I guess I should probably get ready for a new fuel pump anyways though.




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