Gas Leaking Around Gas Cap


Information and questions on GL1500 Goldwings (1988-2000)
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okie2ee
Posts: 58
Joined: Thu Aug 09, 2018 4:39 pm
Location: Sapulpa, OKlahoma
Motorcycle: 1992 Honda Goldwing 1500 Interstate
1986 Yamaha V-Max
1994 Yamaha V-Max

Gas Leaking Around Gas Cap

Post by okie2ee » Wed Sep 26, 2018 5:59 pm



I finally found the source of my gas smell when riding, the plastic tray surrounding the gas cap is wet with gas. I filled the tank today and rode home and the tray was wet with gas. The gas cap appears to be sealing properly based on feel only. Is this common to have to replace the rubber gasket on the gas cap? Or is the gas coming from somewhere else............thanks





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bellboy40
Posts: 467
Joined: Fri Nov 27, 2009 1:13 pm
Location: Brewton, AL
Motorcycle: 2000 GL1500SE Candy Spectra Red
1994 GL1500SE Pearl Bermuda Green

Re: Gas Leaking Around Gas Cap

Post by bellboy40 » Wed Sep 26, 2018 6:33 pm

It could very well be leaking from the fuel petcock. It is vacuum operated and has a rubber diaphragm inside that is prone to developing a leak sometimes. It is the unit right in front of the gas cap that has the gas lines going to it. If it is what is leaking, you can purchase a rebuild kit to repair it. Cyclemax in Ohio is one place to get it.
https://cyclemax.com/inc/sdetail/gl1500 ... _kit/20457

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NOVAwing
Posts: 230
Joined: Mon Apr 30, 2018 5:54 pm
Location: Nothern Va
Motorcycle: 1993 GL1500 Aspencade

Re: Gas Leaking Around Gas Cap

Post by NOVAwing » Wed Sep 26, 2018 7:16 pm

I second the fuel petcock valve.

Parts are cheap and its easy to rebuild if your handy.
NOVAwing
1993 GL1500 Aspencade, restored from 4 years rotting outside.

“A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed.”

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okie2ee
Posts: 58
Joined: Thu Aug 09, 2018 4:39 pm
Location: Sapulpa, OKlahoma
Motorcycle: 1992 Honda Goldwing 1500 Interstate
1986 Yamaha V-Max
1994 Yamaha V-Max

Re: Gas Leaking Around Gas Cap

Post by okie2ee » Wed Sep 26, 2018 9:33 pm

Thank you for the feedback...............I've ordered a petcock rebuild kit

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RBGERSON
Posts: 3207
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 Leaking Around Gas Cap

Post by RBGERSON » Thu Sep 27, 2018 8:36 am

Yep there is a weep hole in that unit...singalong you need to rebuild!!
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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bluthundr31
Posts: 249
Joined: Tue Jul 11, 2017 11:43 pm
Location: Morgan Hill, CA.
Motorcycle: 1991 GL1500 Interstate (Cinnamon Beige)

Re: Gas Leaking Around Gas Cap

Post by bluthundr31 » Thu Sep 27, 2018 6:12 pm

Troubleshooting/checking the fuel petcock is probably your best bet to resolve the issue, , , , but, , , since you commented about the gas cap, , , soak that gas cap in a vinegar solution for a couple hours and watch all the rust/crud that comes out, , , , blow it dry with compressed air then lube (WD40) well so the springs and tabs work smoothly.



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