Fuel filter ????


Information and questions on GL1500 Goldwings (1988-2000)
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Gordwing
Posts: 81
Joined: Tue Jul 05, 2011 8:32 am
Location: Orangeville, ON
Motorcycle: 1992 GL1500 Aspencade

Fuel filter ????

Postby Gordwing » Tue Sep 30, 2014 2:34 pm



Hello fellow wingers....more problems with my 92 aspencade. After about 5 hours of cruising through beautiful Ontario enjoying the fall colors my wing suddenly bogged down. I let it sit for a few minutes and it started. after a few more kilm's and a fresh tank of 91 octane it suddenly bogged down again. This happened 4 times to the point where it was either spend the night on the side of the road or call CAA. Any thoughts??????

Gordwing



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Bigbiker0
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Location: Mont-Tremblant
Motorcycle: 1997 gl 1500 se

Re: Fuel filter ????

Postby Bigbiker0 » Tue Sep 30, 2014 2:45 pm

It might be water in gas.
Drive safely Heaven do not exist.

Gordwing
Posts: 81
Joined: Tue Jul 05, 2011 8:32 am
Location: Orangeville, ON
Motorcycle: 1992 GL1500 Aspencade

Re: Fuel filter ????

Postby Gordwing » Tue Sep 30, 2014 3:59 pm

Could be but once it started it would idle as long as I let it. It only bogged down after I rode a few kilm's. I'm going to drain my tank and replace the filter for sure just in case.

Thanks

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gordonv
Posts: 168
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Location: Richmond BC
Motorcycle: 1988 GL1500
1999 GL1500CF
1982 GL1100A

Re: Fuel filter ????

Postby gordonv » Tue Sep 30, 2014 7:17 pm

Understand I'm more up on the Valkyries than the GW. It sounds like a fuel delivery problem.

I would suspect that you are not getting enough fuel to the carbs while driving. Could be a clogged filter, a vacuum leak to the fuel valve, or a pump issue.

I just changed my filter on my 88' 60K miles GW for piece of mind, since I had no history from the PO (along with other items).

Since you have a 92', I would suspect a vacuum leak not allowing the fuel shut off to stay fully open, over the fuel pump not pumping enough. How would you find the air leak? No idea with all that plastic on the bike. I'm planning on changing all mine sometime over the next year, but I need to strip the bike down.

Nothing easy on the road to test, but there is a test for the fuel pump and the volume it pumps out. Basically you disconnect the fuel line from the shut off valve and place in a pail, then add a jumper to the fuel relay and energize, which while cause the pump to run. Time and volume = OPM (ounces).

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RBGERSON
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Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Fuel filter ????

Postby RBGERSON » Wed Oct 01, 2014 8:39 am

Loosen your gas cap and see if it fixes the issue..works on 1000' sand 110's clogged gas cap vent not sure if 1500's have that..but easy to try.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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Mh434
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Motorcycle: 1997 gl1500 SE
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1981 GL1100I
1989 Kawasaki Concours

Re: Fuel filter ????

Postby Mh434 » Wed Oct 01, 2014 1:10 pm

I agree, it sounds like a fuel delivery issue - not whether it's getting fuel, but how fast.

The others have mentioned the primary areas to look at - think of these things in terms of restrictions to the flow rate of fuel. We know the bike IS getting fuel, but the higher demands in flow rate at speed aren't being met.

The gas cap is the easiest to check - when the bike starts to die, open the cap. If that fixes it, the vent in the cap is the culprit. As the fuel is used, air must be able to fill the space to avoid a vacuum.

Fuel filter would be next on the list. If the filter is partially clogged (say, for example, there was water or dirt in the last tank of gas you bought?), enough fuel can get by to let the bike idle, but the flow is too restricted for the higher demands of highway running.

Last, and least likely IMHO, would be the pump. Generally, as I understand it, GL1500 pumps are more of an assist than a full-time, full pressure pump. From what I've read (haven't tested it myself, mind you), a GL1500 with a full tank of fuel will run fine even with the pump not working, just using gravity to supply the carbs. As the fuel level gets low, gravity needs an assist to get fuel to the carbs, and the pump does its thing. Considering that, in your case, it doesn't seem to matter what the fuel level in the tank is, I'd take a run at the first two issues before considering pump problems. Besides the first two issues are free & no work, or just a few bucks and not much work, respectively.

Just my humble opinion...

** Oh, and by the way...once you get it sorted, I'd suggest using Seafoam to help clear any crud in the fuel system, lest traces of it continue to plague you. I tried it for the first time myself, a month or so ago. Immediately after fueling up, my GL1500 started idling like crap - blubbering, idle dropping, lots of choke required when cold, etc. It took several weeks, a dozen or so tanks of gas (3 or 4 treated with Seafoam), and a couple of thousand km. under the wheels, but it cleared out the crud & she's purring like a kitten again.

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gordonv
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Motorcycle: 1988 GL1500
1999 GL1500CF
1982 GL1100A

Re: Fuel filter ????

Postby gordonv » Wed Oct 01, 2014 9:37 pm

I didn't think a clogged air vent to the tank could be a problem on the GW since there is a fuel pump, which I felt would override any vacuum.

About the seafoam. High strength is what you want with any carb cleaner when your mc is running rough. Like 1/2 can of cleaner to 1/2 tank of fuel. Best results are from using multiple tanks of the same cleaner, then switching to other cleaners. Each one seems to do a little more of the job. There is Berrymans B12 and Techron, as 2 others of choice.

I've switched to buying Chevron fuel so I have my Techron in the gas. I don't drive as much as I would like, so a little cleaner in the fuel is a little easier to do.

With the Valkyrie, which has 6 carbs, you can understand that the problems are multiplied 3x over the GW.

But since your problem is not just rough idling, this is not your problem. But after it's fixed is worth trying out.

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MikeB
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Location: Tacoma, WA
Motorcycle: 1998 - GL1500 Aspencade.
2003 - GL1800A

Re: Fuel filter ????

Postby MikeB » Thu Oct 02, 2014 10:55 am

It is possibly the fuel petcock. It is a vacuum operated fuel shut off.
Read through this thread: http://goldwingdocs.com/forum/viewtopic.php?f=6&t=1205&hilit=+petcock
MikeB
Tacoma, WA, USA

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WingAdmin
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Motorcycle: 2000 GL1500 SE
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Re: Fuel filter ????

Postby WingAdmin » Thu Oct 02, 2014 3:31 pm

gordonv wrote:I didn't think a clogged air vent to the tank could be a problem on the GW since there is a fuel pump, which I felt would override any vacuum.


Not necessarily. We had a user on here whose fuel tank actually collapsed somewhat due to massive vacuum created by the fuel pump. If nothing else, it's a good way to overwork (and cause an early death of) your fuel pump.

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ct1500
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Re: Fuel filter ????

Postby ct1500 » Thu Oct 02, 2014 6:39 pm

gordonv wrote:I didn't think a clogged air vent to the tank could be a problem on the GW since there is a fuel pump, which I felt would override any vacuum.


WingAdmin wrote:Not necessarily. We had a user on here whose fuel tank actually collapsed somewhat due to massive vacuum created by the fuel pump. If nothing else, it's a good way to overwork (and cause an early death of) your fuel pump.


Having a vacuum in a tank is never a good thing, the fuel cap is designed to let air in but not out under most circumstances.
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ct1500
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Re: Fuel filter ????

Postby ct1500 » Thu Oct 02, 2014 6:45 pm

Mh434 wrote:Last, and least likely IMHO, would be the pump. Generally, as I understand it, GL1500 pumps are more of an assist than a full-time, full pressure pump.


Whenever the engine is cranking or running the pump is constantly active supplying fuel to the carbs at 1.5 psi.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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Mh434
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Re: Fuel filter ????

Postby Mh434 » Thu Oct 02, 2014 10:11 pm

Yep, I get that - but I have read of GL1500's running with non-functioning fuel pumps, as long as the fuel tank was fairly full. My point was that, if this is true, the fact that his bike did this both with a full tank as well as low fuel would likely indicate that the pump was the least likely of the possibilities...

The pump, obviously, still needs to be there & operational.

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redial
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Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: Fuel filter ????

Postby redial » Fri Oct 03, 2014 1:52 am

After about 5 hours of cruising through beautiful Ontario enjoying the fall colors my wing suddenly bogged down.


That, to me, sounds like the petcock. But then I cannot tell a Jimmy Hendrix from the Beatles, so my sounds may be different to what others may hear.
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

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ronjr123
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Location: Lima, Ohio
Motorcycle: 2000 GL1500 SE

Re: Fuel filter ????

Postby ronjr123 » Fri Oct 03, 2014 11:45 am

I had something similar happen to me. Whenever I rode and speed was less than 50 MPH, everything was fine. Ran like a top. As soon as I entered an interstate or increased speed to over 60 mph, after bout a mile or so, it started loosing fuel and "bogged" down. Pull off to the side of the road with the bike at idle and about a minute later it again seemed fine. Did the gas cap thing and didn't help. Ended up being the fuel filter. Easy fix.

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MikeB
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Motorcycle: 1998 - GL1500 Aspencade.
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Re: Fuel filter ????

Postby MikeB » Fri Oct 03, 2014 1:05 pm

If you are in the market for a replacement fuel filter, WingAdmin's review of this one http://goldwingdocs.com/forum/viewtopic.php?f=18&t=23125 is probably something you should read. It is almost equal to the price of a new OEM filter but it is most likely the last fuel filter you will ever need for your Wing.
MikeB
Tacoma, WA, USA

Gordwing
Posts: 81
Joined: Tue Jul 05, 2011 8:32 am
Location: Orangeville, ON
Motorcycle: 1992 GL1500 Aspencade

Re: Fuel filter ????

Postby Gordwing » Sat Oct 11, 2014 11:18 am

Thanks again for the advice.I will replace the fuel filter and check the fuel pump. My manual doesn't show me an actual picture of the engine control unit under the right inside fairing cover beside the fuel tank. Any pictures out there ? I want to jump the black/blue and black/white wires.

Thanks




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