Leaking fuel


Information and questions on GL1000 Goldwings (1975-1979)
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Jjbraden
Posts: 3
Joined: Sun Dec 29, 2019 6:05 pm
Location: Columbia City, IN
Motorcycle: GL1100 Interstate

Leaking fuel

Post by Jjbraden »



Got a 1982 wing. Had fuel coming out of right bank. Rebuilt carbs, new everything. Still have fuel coming out right bank, it's raw fuel. Any ideas what I should do next



froche
Posts: 267
Joined: Wed Mar 12, 2014 1:56 pm
Location: Vista, ca
Motorcycle: 1985 Goldwing Aspencade (GL1200A)
2002 GL1800

Former bikes;
2000 R1100RT
2005 Suzuki Bandit
1979 Yamaha XS1100
1978 Yamaha XS1100 Special
1990 Yamaha XV250
1980 Yamaha XV750
1979 Honda CB750
1968 Triumph Bonneville T120
1973 Honda CB450
1968 Harley Davidson Sportster
1974 Honda CB750
1968 Honda CL72

Re: Leaking fuel

Post by froche »

Check fuel lines could be a crack or missing a small piece between carbs. I think both left and right ides are connected by a "tee" between them could be cracked or missing,

Depends on where it is coming from

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winguyjo
Posts: 337
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, now riding.
wing6 : 1975 gl1000 blue; nearing completion.

Re: Leaking fuel

Post by winguyjo »

yes, try to figure out where it is coming from. if it's from the overflow, then sometimes a few quick raps on the float bowl(s) with the handle of a screwdriver can help the float needle(s) get seated.

Jjbraden
Posts: 3
Joined: Sun Dec 29, 2019 6:05 pm
Location: Columbia City, IN
Motorcycle: GL1100 Interstate

Re: Leaking fuel

Post by Jjbraden »

Appears to be leaking out exhaust. Don't know if exhaust on the right is blocked somehow, and this is the problem.
Is it possible that the sync is a little out and so carbs 1 & 3 are getting too much fuel?

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winguyjo
Posts: 337
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, now riding.
wing6 : 1975 gl1000 blue; nearing completion.

Re: Leaking fuel

Post by winguyjo »

carb synching only smooths out the idle. can't cause fuel leakage.
most likely cause is inlet needle not seating.

Arts79
Posts: 4
Joined: Tue May 19, 2020 1:17 pm
Location: Los Angeles,CA
Motorcycle: 1979 GL1000 MC

Re: Leaking fuel

Post by Arts79 »

Question. Is normal to see raw fuel inside of plenum of the intake maniful, first bike with this type of engine, very confusing, bike is Belem parked for a long time, runs but won’t stay running by it self, thanks for any info on this

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ct1500
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Motorcycle: 1988 GL1500
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Re: Leaking fuel

Post by ct1500 »

Arts79 wrote:
Tue May 19, 2020 2:39 pm
Question. Is normal to see raw fuel inside of plenum of the intake maniful, first bike with this type of engine, very confusing, bike is Belem parked for a long time, runs but won’t stay running by it self, thanks for any info on this
No, that is not normal for fuel to pool prior to intake of carb, fuel goes to carbs then into engine. Either a float/float valve problem or in the distribution pathway of fuel.
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dingdong
Posts: 3911
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Leaking fuel

Post by dingdong »

You say that you rebuilt carbs. Please describe rebuild process. Did you use a carb kit? If so which kit? Did you replace the orings on the connectors tubes between the carbs? Did you adjust the floats? They are critical. Close doesn't count. Did you replace the float valves? Most after market float valves are worthless. OEM valves are recommended.
The exhaust can't cause a leak.

Arts79
Posts: 4
Joined: Tue May 19, 2020 1:17 pm
Location: Los Angeles,CA
Motorcycle: 1979 GL1000 MC

Re: Leaking fuel

Post by Arts79 »

Thanks for the info ct1500, I’m going to try to take carbs out to cleaning and inspections of components, your probably right, to much gas going in, something definitely not working right, thanks again

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77RedandWhite
Posts: 11
Joined: Sun May 24, 2020 3:22 pm
Location: York, PA
Motorcycle: 1977 GL1000
1980 CB650

Re: Leaking fuel

Post by 77RedandWhite »

The next time it happens, pull the plugs and see if the cylinder is full of gas. If it is, your floats are either shot and not floating, or your floats are catching on the gaskets. Mine had a similar problem, and I was pouring fuel everywhere when I left the gas on.
Naked 77 Wing
80 CB 650, built from boxes of parts
Motorcycles. Snowboarding. Paintball. 3D printing. Cosplay. Warhammer 40k. Tabletop Gaming.

Arts79
Posts: 4
Joined: Tue May 19, 2020 1:17 pm
Location: Los Angeles,CA
Motorcycle: 1979 GL1000 MC

Re: Leaking fuel

Post by Arts79 »

Thanks 77RedandWhite, have carbs out, looks that they need a rebuilt, o rings are shot, as well of really dirty, haven’t open fuel reservoir to check on floats, going to order a repair kit and then work on them, any suggestions on any specific brand or they are all the same, thanks for the advice before hand

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77RedandWhite
Posts: 11
Joined: Sun May 24, 2020 3:22 pm
Location: York, PA
Motorcycle: 1977 GL1000
1980 CB650

Re: Leaking fuel

Post by 77RedandWhite »

If you have to rebuild the entire rack, get Randakk if you can afford it. His gaskets are made from Viton and wont change size due to modern fuel additives. If you cant afford a full rebuild kit from him, get the bowl gaskets from him at a minimum, plenum string and plenum to carb orings (if you are going that far), and maybe the fuel filter as long as you are making an order from him. I wish I had done his kit the first time I had gone through my rack, it would have saved me a couple of times tearing into them later. I was on a serious budget at the time and bought the ebay kits with the most parts for the lowest price and I have jet orings that have shrunk, jets the wrong size, and i had the bowl gaskets go bad again before finally ordering them from Randakk.

Best of luck, let us know how it goes.

Edit: one more thing- get a gallon of simple green and boil all of your carb parts for a couple of hours, occasionally stirring the pot. Old roasters are great for this (ask me how I know... 1942 Nesco Roaster still going strong!) but you can also just put them on the stove. Blow it out with compressed air/carb cleaner. Otherwise, see if you can tear them apart (sandwich ziplocks are your friend- copious amounts of bags keep individual carb parts separate and labeled) and get the bodies ultrasonically cleaned. Mine stopped having idle issues once i finally got them done this way. All the little parts you can boil in simple green.
Naked 77 Wing
80 CB 650, built from boxes of parts
Motorcycles. Snowboarding. Paintball. 3D printing. Cosplay. Warhammer 40k. Tabletop Gaming.

Arts79
Posts: 4
Joined: Tue May 19, 2020 1:17 pm
Location: Los Angeles,CA
Motorcycle: 1979 GL1000 MC

Re: Leaking fuel

Post by Arts79 »

Thanks 77, i can always try to do that, dont have that much mecanical knowlege, so one at the time is my option, not in a rush so will be done some time after I start with this project, dont now if is worth money and effort to bring it back to life, bike have 45k miles and life expectancy is unknown, I will keep on playing with it until I ran out of money, thanks for the information I'll give it a try

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winguyjo
Posts: 337
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, now riding.
wing6 : 1975 gl1000 blue; nearing completion.

Re: Leaking fuel

Post by winguyjo »

45k miles ?
not likely, i would figure on 145k or even 245k and i wouldnt care. these engines are rock solid; built to go many, many miles.
that said, you can quickly spent more on the resurrection process (tires, timing belts, oil, coolant, filters, carb overhaul, brakes ... etc., etc., than the bike will be worth after you are done. the good news is that when you are done, you will have a goldwing :D .



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