GL1500 pouring fuel out of overflow


Information and questions on GL1500 Goldwings (1988-2000)
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evolbob
Posts: 15
Joined: Wed Apr 14, 2010 9:09 am
Location: Brunswick, GA
Motorcycle: 1985 GL1200 Aspencade
1994 GL1500 Aspencade

GL1500 pouring fuel out of overflow

Postby evolbob » Sun Jul 03, 2016 5:53 pm



I have a new to me 94 Aspy that has a California compliant sticker on frame. When I bought bike it wouldn't start so after some troubleshooting found dirty connection at bank angle sensor and dead fuel pump. Repaired connection and replaced pump with a 77 Celica pump from RockAuto. She fired right up after that. No leaks were noticed at that time. I decided that since it had set in a garage for a season or two I would rebuild carburators with a Randakk kit. Good thing I pulled it because one of the vacuum pistons was tore so ordered it too. Parts came in, pulled carbs, rebuilt, reinstalled, fired right up! Thats when I noticed the fuel pouring out of over flow tube (the one that snakes down side of bike). After reading some posts on here and elsewhere about this issue I rapped on the bowls a couple of times and it stopped. But, it started again so I pulled carbs again and noticed that one of the floats would "hang" a little. Pulled seat and ran a bore brush in it to "polish" it the best I could. Seemed to work great after that. However, after reinstalling carbs again I fired her up and fuel started gushing again. Could I still have a float problem or do I need to look elsewhere?



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gipsy42
Posts: 37
Joined: Sat Jun 12, 2010 8:58 pm
Location: Villa Adelina, Bs.As. Argentina
Motorcycle: 1993 GL1500 SE
1978 GL1000
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Re: GL1500 pouring fuel out of overflow

Postby gipsy42 » Sun Jul 03, 2016 6:51 pm

Hello evolbob:
Did you check the float height?? Cause if you cleaned the seat andit's not sticking, this may be the trouble.
Mario
aka Gipsy42
And still riding...
I just regrets the things I haven't done.

http://www.surfcam.com.ar
http://www.cre-angeles.org.ar

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ct1500
Posts: 813
Joined: Wed Nov 10, 2010 8:09 pm
Location: Glastonbury,CT
Motorcycle: 1988 GL1500
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Re: GL1500 pouring fuel out of overflow

Postby ct1500 » Mon Jul 04, 2016 7:18 am

Sounds like it is time to replace the float valves.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

evolbob
Posts: 15
Joined: Wed Apr 14, 2010 9:09 am
Location: Brunswick, GA
Motorcycle: 1985 GL1200 Aspencade
1994 GL1500 Aspencade

Re: GL1500 pouring fuel out of overflow

Postby evolbob » Mon Jul 04, 2016 10:25 am

Float level was 8 mm. Rapped on the bowls again last night and leak stopped. Cranked it several times last night as well as this morning and no leaks. Going to run some seafoam and see how it goes. Now I have to bleed brakes, have no rear brake at all.

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johnfliesagain
Posts: 48
Joined: Tue Jan 12, 2016 6:10 pm
Location: Baltimore, MD
Motorcycle: 2000 GL1500SE Anniversary Badge
Yamaha 79 XS750; 80 XS850
Picture of one of my Triples Yamaha xs750 '79 at Timonium Bike Show 2015

Re: GL1500 pouring fuel out of overflow

Postby johnfliesagain » Mon Jul 04, 2016 4:44 pm

Not to digress about your fuel issue but you mentioned brakes:

Have you read about the brakes? If yours is like my 2000 the rear and left front operate off the foot pedal.

Per the 2000 Honda Manual page 14-7 Bleed the left front caliper first, then the rear. Use DOT4 Fluid
The front hose by the way has a bend in it that loops upward. So make sure you get good clean flow before calling it done.

I used a Mity-Vac vaccum pump for bleeding. Worked great. Why I sucked all the fluid out of the system at least three times...

It really pulls fluid through quickly so be sure to keep an eye on the resevoir or you will hear a sucking sound and just as you are about to say what is that, the air comes through the vacuum pump! And then you say Oh No or some such other words.

Be sure to do the right front brake too, controlled by the handle bar master cylinder; and don't forget about the clutch!

When I got mine six months ago the clutch was the worst! Almost looked like Coca Cola in color.
John in Baltimore
A proud owner of a 2000 1500SE
:D Did I mention it was a Free Gift from a co-worker?

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AZgl1800
Posts: 60
Joined: Thu Oct 30, 2008 2:46 pm
Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800 still young at 108,900 miles

Re: GL1500 pouring fuel out of overflow

Postby AZgl1800 » Tue Jul 05, 2016 2:24 am

When you set the float valves, did you make it a point to turn the carbs over so the float is hanging down?
the top of the carb must be vertical when you make the measurement.

just barely tilt it enough for the float to swing into the valve seat, and blowing on the gas line you will feel resistance when it closes.
John
'02 Gl1800 Hot Rod Yellow,
daughter named her Big Bird :lol:
http://www.goldwingfacts.com

evolbob
Posts: 15
Joined: Wed Apr 14, 2010 9:09 am
Location: Brunswick, GA
Motorcycle: 1985 GL1200 Aspencade
1994 GL1500 Aspencade

Re: GL1500 pouring fuel out of overflow

Postby evolbob » Sat Jul 23, 2016 2:31 pm

After pulling carbs off again and verifying that when float closes I can't blow through line I reassembled and started bike. It started leaking but tapping the bowl through the front of bike made it stop. So, I focused on the brakes and finally got them bled. During this time I would start the bike just to see if any leaks occurred and it didn't. After finishing with brakes today I took the bike around the block then started smelling gas. It was pouring out if the overflow again. I am at a loss and getting very discouraged. I am thinking of just staying with my 1200 but was really looking forward to this upgrade.

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Bluewaterhooker0
Posts: 558
Joined: Wed Nov 14, 2012 11:27 pm
Location: Tampa, Fl
Motorcycle: 1997 Goldwing GL 1500 SE

Re: GL1500 pouring fuel out of overflow

Postby Bluewaterhooker0 » Sat Jul 23, 2016 5:35 pm

I've not had my bike carbs apart, but have worked on auto carbs in the past. It sounds, and I'm sure you already figured that out, that your float is sticking. If you can tap the bowl and it seals, something is clearly sticking. Finding out why is your next project. Maybe someone with more experience on this specific carb can lead you in the right direction, or maybe even a known issue. Glad I've not had to deal with that.

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ct1500
Posts: 813
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Location: Glastonbury,CT
Motorcycle: 1988 GL1500
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Re: GL1500 pouring fuel out of overflow

Postby ct1500 » Sat Jul 23, 2016 7:49 pm

evolbob wrote: I am at a loss and getting very discouraged.


Did you read my previous post? It is not advisable to install car parts (fuel pump) into a MC when OEM are readily available. Spend the money to get the correct parts and do a repair once.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

evolbob
Posts: 15
Joined: Wed Apr 14, 2010 9:09 am
Location: Brunswick, GA
Motorcycle: 1985 GL1200 Aspencade
1994 GL1500 Aspencade

Re: GL1500 pouring fuel out of overflow

Postby evolbob » Sat Jul 23, 2016 8:56 pm

ct1500, I don't recall seeing your post concerning car pumps but funny you say that because I was questioning that very thing this afternoon. I replaced the defective fuel pump that was in the bike when I bought it with the Carter/NAPA P72190 after researching various Goldwing forums and taking the advice of others that used the same pump. I am sitting here with the bike now really dreading pulling the carbs again. Will buying an OEM pump for several hundred dollars fix my problem? I just don't know. Was thinking of ordering the float valve set and replacing that. Really want this bike running because after taking the spin around the block to day with it not sure i want to go back to just the 1200.

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ct1500
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Motorcycle: 1988 GL1500
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Re: GL1500 pouring fuel out of overflow

Postby ct1500 » Sun Jul 24, 2016 8:33 pm

First thing is to remove carb bowl vent hoses at back of carbs to determine if it is one or both carbs flooding. If both leaking then float setting procedure/assembly technique becomes suspect. Tips of float valves can be damaged by improper handling/cleaning.

OEM fuel pump supplies 1.5 psi pressure, car pumps typical are in the 3.5-5.0 range.


This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM


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