1996 Goldwing flooding out


Information and questions on GL1500 Goldwings (1988-2000)
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DanW2591
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Joined: Fri Jun 11, 2021 5:19 pm
Location: Acworth GA
Motorcycle: 1996 Goldwing 1500SE

1996 Goldwing flooding out

Post by DanW2591 »



I have a 1996 Goldwing 1500SE with a flooding problem that started a few weeks ago. every time I try to start it, it floods out and fuel pours out the overflow tube.
First try in trouble shooting was to check the floats. second thing was to disconnect the fuel pump. tried to start bike with the pump disconnected and it started right up. I did replace the fuel pump last year with an aftermarket pump. Could the pump be putting out to high of PSI and flow?
When the bike is running should the ECM be sending out 12 volts to the fuel pump all the time?

Any help on this would be greatly appreciated.


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Rambozo
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Re: 1996 Goldwing flooding out

Post by Rambozo »

DanW2591 wrote: Fri Jun 11, 2021 5:52 pm Could the pump be putting out to high of PSI and flow?
Excess flow doesn't matter but excess pressure does. Measure your pressure and make sure it is within spec. I believe OEM is about 1.5 psi and aftermarket pumps that work well are 2 psi. If you have a typical automotive carb pump 5-7 psi, that is way too much.
When the bike is running should the ECM be sending out 12 volts to the fuel pump all the time?
Yes.
DanW2591
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Joined: Fri Jun 11, 2021 5:19 pm
Location: Acworth GA
Motorcycle: 1996 Goldwing 1500SE

Re: 1996 Goldwing flooding out

Post by DanW2591 »

I was able to install a pressure gauge but the scale is too big. Looks like about 4 PSI but hard to tell on this scale. Will try to find a gauge with a smaller scale.




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Rambozo
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Re: 1996 Goldwing flooding out

Post by Rambozo »

Yeah, that gauge is for fuel injection. The pressures you are looking for will be down in the noise and error range of that gauge.
Many vacuum gauges also have the ability to measure low fuel pump pressure. Like this one also from HF.


DanW2591
Posts: 5
Joined: Fri Jun 11, 2021 5:19 pm
Location: Acworth GA
Motorcycle: 1996 Goldwing 1500SE

Re: 1996 Goldwing flooding out

Post by DanW2591 »

Thanks for the info sounds like a road trip. will report back soon.
DanW2591
Posts: 5
Joined: Fri Jun 11, 2021 5:19 pm
Location: Acworth GA
Motorcycle: 1996 Goldwing 1500SE

Re: 1996 Goldwing flooding out

Post by DanW2591 »

Got the new gauge now reading is 2.5 after a bit almost 3 PSI.


So does it look like a new better fuel pump is in order? One that only puts out 1.5 to 2 PSI.
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Rambozo
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Re: 1996 Goldwing flooding out

Post by Rambozo »

That a little high but it should be ok. The main thing is that it isn't the wrong range pump. Time to check the floats.
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BikerBuck
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Location: Des Moines, Iowa
Motorcycle: 1998 GL1500 SE
1983 GL1100A Aspencade (sold)
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Re: 1996 Goldwing flooding out

Post by BikerBuck »

I think you are on track suspecting the after market fuel pump. I replaced mine with the Carter pump referenced here
last fall after my stock pumped failed while touring Northern Wisconsin. with the Carter pump, the bike was always
flooded anytime I went to start it. When idling through town I could always smell gas. I finally bit the bullet, ordered
a factory pump from Cyclemax and all is well.
DanW2591
Posts: 5
Joined: Fri Jun 11, 2021 5:19 pm
Location: Acworth GA
Motorcycle: 1996 Goldwing 1500SE

Re: 1996 Goldwing flooding out

Post by DanW2591 »

Yes,
Replaced pump with $300 Honda pump. all is well now runs like a new bike again.

Thanks for all the help.


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