gas leak... where to start


Information and questions on GL1100 Goldwings (1980-1983)
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stancotreau
Posts: 36
Joined: Tue Oct 12, 2010 1:28 pm
Location: Billerica, MA
Motorcycle: 2009 Suzuki Boulevard

gas leak... where to start

Postby stancotreau » Fri Oct 15, 2010 7:01 am



Hi from Mass. I have a new to me project bike, '81 GL1100. Yesterday when we rolled it off the trailer it started leaking gas? after it sits still, no gas leaking???? then I roll it around in the garage, leaking gas??

fuel petcock is set to the off position and it is not clear to me where it is leaking from... any ideas as to where I should look?

bike is in tough shape but not hopeless. click this link if you want to see a few pictures

http://1981gl1100restoration.blogspot.com

thanks for any help.......... Stan (been riding a long time but this is my first major repair job)



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RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: gas leak... where to start

Postby RBGERSON » Fri Oct 15, 2010 7:15 am

Gas tank..pin holes?? If it from the carbs..top of the engine will have residue, same with petcock..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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WingAdmin
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Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: gas leak... where to start

Postby WingAdmin » Fri Oct 15, 2010 8:02 am

Does the bike run? If so, start it with the petcock closed, and after a minute, remove the fuel line from the petcock, to allow it to pull ALL of the fuel through the filter and out of the carb float chambers. That will remove all the fuel from the system - so if it still leaks, then you know it's the gas tank.

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dingdong
Posts: 2865
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Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: gas leak... where to start

Postby dingdong » Fri Oct 15, 2010 8:20 am

Looks like she is in pretty good shape to me. I've seem a lot worse. Except for all the add-on chrome rusting out she should be an easy re do.
Tom

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stancotreau
Posts: 36
Joined: Tue Oct 12, 2010 1:28 pm
Location: Billerica, MA
Motorcycle: 2009 Suzuki Boulevard

Re: gas leak... where to start

Postby stancotreau » Fri Oct 15, 2010 8:21 am

the bike doesn't run..... yet. I think I'll take a closer look at it tomorrow. If it isn't clear to me where it is coming from I'll pull the tank and have a good look at it. Does that make sense?? Also, does kreeming a tank, or using POR-15 seal it? or just protect it against rust?

thanks a lot for your time

Stan

User avatar
RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: gas leak... where to start

Postby RBGERSON » Sat Oct 16, 2010 6:05 am

Pulling the tank is not an easy job..but POr15 will seal small holes..and I won't use Kreem it has been know to flake off and clogged the carbs..to check the tank in place..drain completely..dark garage shine flash in the tank look for light coming out
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

stancotreau
Posts: 36
Joined: Tue Oct 12, 2010 1:28 pm
Location: Billerica, MA
Motorcycle: 2009 Suzuki Boulevard

Re: gas leak... where to start

Postby stancotreau » Sat Oct 16, 2010 7:14 am

thanks, easy place to start....

goldtr6c
Posts: 147
Joined: Tue May 11, 2010 11:17 am
Location: Hitchcock, Tx
Motorcycle: 1985 GL1200 LTD
1982 GL1100 STD
1976 GL1000 "800lb Canary"

Re: gas leak... where to start

Postby goldtr6c » Sat Oct 16, 2010 10:11 am

I would start with Randakks fuel valve kit. Get it so when the the valve is off, the fuel is off. Until you can pull and clean the tank, I reccomend adding an extra filter between the valve and the fuel pump to catch any rust before it goes to the carbs. You'd be surprized at how much will get past the stock filter. I have one from Autozone with a sediment bowl about the size of a golfball and its very transparent enough to see the rust its trapping. Just might save you a headache later.




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