Leaking fuel


Information and questions on GL1000 Goldwings (1975-1979)
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Jjbraden
Posts: 2
Joined: Sun Dec 29, 2019 6:05 pm
Location: Columbia City, IN
Motorcycle: GL1100 Interstate

Leaking fuel

Post by Jjbraden » Wed Jan 08, 2020 8:58 pm



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: 254
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 » Wed Jan 08, 2020 10:31 pm

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

winguyjo
Posts: 260
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 : 81 gl1100i frame / 82 gl1100a engine/ 81cb900 odds & ends; resurrection complete. it's naked. SOLD.
next up : 1977 gl1000 naked. resurrection complete. SOLD
i need a wing.

Re: Leaking fuel

Post by winguyjo » Thu Jan 09, 2020 1:08 am

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: 2
Joined: Sun Dec 29, 2019 6:05 pm
Location: Columbia City, IN
Motorcycle: GL1100 Interstate

Re: Leaking fuel

Post by Jjbraden » Wed Jan 15, 2020 3:40 am

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?

winguyjo
Posts: 260
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 : 81 gl1100i frame / 82 gl1100a engine/ 81cb900 odds & ends; resurrection complete. it's naked. SOLD.
next up : 1977 gl1000 naked. resurrection complete. SOLD
i need a wing.

Re: Leaking fuel

Post by winguyjo » Wed Jan 15, 2020 2:32 pm

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

Arts79
Posts: 2
Joined: Tue May 19, 2020 1:17 pm
Location: Los Angeles,CA
Motorcycle: 1979 GL1000 MC

Re: Leaking fuel

Post by Arts79 » 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

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ct1500
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Location: Glastonbury,CT
Motorcycle: 1988 GL1500
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Re: Leaking fuel

Post by ct1500 » Tue May 19, 2020 3:36 pm

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: 3851
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 » Wed May 20, 2020 8:50 am

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: 2
Joined: Tue May 19, 2020 1:17 pm
Location: Los Angeles,CA
Motorcycle: 1979 GL1000 MC

Re: Leaking fuel

Post by Arts79 » Wed May 20, 2020 1:01 pm

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

77RedandWhite
Posts: 6
Joined: Sun May 24, 2020 3:22 pm
Location: York, PA
Motorcycle: 1977 GL1000
1980 CB650

Re: Leaking fuel

Post by 77RedandWhite » Sun May 24, 2020 8:41 pm

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.



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