air in fuel line


Information and questions on GL1200 Goldwings (1984-1987)
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rkjmg5757
Posts: 10
Joined: Tue Jan 04, 2011 12:46 am
Location: Litchfield
Motorcycle: 1986 GL1200A

air in fuel line

Postby rkjmg5757 » Thu May 10, 2012 10:35 pm



Bike broke down on me on ride to the coast, restarted after a stop for about 30 minites. There after every 30 mins on the way home.Suspected the fuel pump / or relay , fitted a fuel pump from autozone and a new filter. While there changed the fuel lines. Still had the same problem. Finally removed petcock and found o rings which were worn on the mating surfaces. Replaced these and that was that.



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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: air in fuel line

Postby WingAdmin » Fri May 11, 2012 7:45 am

You might want to check your fuel tank cap. If the valve in the cap gets clogged, a vacuum can develop inside the tank that overcomes the ability of the fuel pump to draw fuel. Letting it sit for a while can allow enough air to leak in to let you run again.

If it happens again, when the engine starts to die, open the gas cap. If it comes back to life, then that's your problem.

rkjmg5757
Posts: 10
Joined: Tue Jan 04, 2011 12:46 am
Location: Litchfield
Motorcycle: 1986 GL1200A

Re: air in fuel line

Postby rkjmg5757 » Sat May 12, 2012 10:14 am

Thanks for your reply, thanks for your many tips to this web site with all the photos. It must seem like a full time job for you. I always check this website before doing anything with the goldwing.I did think of the the fuel cap not venting, when ever I open it there is a partial vacuum in there, but it did not help with the problem I was having. I thought I had fixed this, but out on a ride yestiday and noticed air bubbles in the fuel filter again. Removed fuel pepcock and put a smear of sealing compound on mating surfaces.See if this improves things. I keep the cap half on and off too.Looks like the rain has stopped this weekend so I will be testing out the repair.
Thanks

RC4U
Posts: 12
Joined: Sun Sep 11, 2011 10:31 am
Location: Bis. ND
Motorcycle: 1981 Honda Goldwing Interstate

Re: air in fuel line

Postby RC4U » Sat May 12, 2012 2:43 pm

air in the filter is normal..but bubbles after the filter are not normall ..i always see air in filters and it just stays constant as once it's in there it does not come out ..jeff

rkjmg5757
Posts: 10
Joined: Tue Jan 04, 2011 12:46 am
Location: Litchfield
Motorcycle: 1986 GL1200A

Re: air in fuel line

Postby rkjmg5757 » Thu May 24, 2012 11:41 pm

Wondering about fuel line route, made line shorter with no dead areas where air bubbles might collect. Has worked up to now. Also replaced pulse generators and timing belts. PS new pulse generator resistances were 320 ohms, ones removed 338 ohms. I might have changed these without good cause, in the haynes book they qoute 1100 to 1300 ohms
Thanks




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