Gl 1500 engine wont stay running


Information and questions on GL1500 Goldwings (1988-2000)
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RoberT75
Posts: 9
Joined: Fri Jul 19, 2019 8:13 pm
Location: Benton, Illinois
Motorcycle: 1995 Goldwing GL 1500 LE

Gl 1500 engine wont stay running

Post by RoberT75 » Fri Jul 19, 2019 8:24 pm



2 weeks ago I went riding and my gl1500 sputtered out on me. I stopped,. Checked stuff out. And limped it to Wal-Mart where I "figured out"it was low on oil. I put dello 400 in it and it had been fine until today. The bike started acting up again. I've checked the oil and it seems fine. Much like last time in order to keep the engine running I'm having to have the choke all the way on and then run the bike as far as I can until it just won't run anymore and it crapped out on me. I then turn the bike off hold it standing up and sit there for a couple of minutes until I can start the bike up and run it a little further down the road to get it somewhere safe. I have no idea what is going on. Can anyone help?



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4given
Posts: 84
Joined: Fri Jul 17, 2015 6:19 pm
Location: danville/PA/
Motorcycle: 1996 honda goldwing aspencade GL1500
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Re: Gl 1500 engine wont stay running

Post by 4given » Fri Jul 19, 2019 8:37 pm

Just a guess but it sounds like it could be the fuel shutoff or petcock located under the fill door. There is a diaphragm that gets brittle and loses vacuum. Rebuild kits sold online.

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DenverWinger
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1980 GL1100 STD Vetter (2005-)
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Re: Gl 1500 engine wont stay running

Post by DenverWinger » Fri Jul 19, 2019 9:46 pm

Might also check to see if loosening the gas cap restores normal running. If gas cap vents get plugged you can form a vacuum in the tank and the pump can't overcome the vacuum to push fuel. Fix for that is to soak the gas cap in Seafoam overnight.....
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AZgl1800
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Re: Gl 1500 engine wont stay running

Post by AZgl1800 » Fri Jul 19, 2019 9:58 pm

4given wrote:
Fri Jul 19, 2019 8:37 pm
Just a guess but it sounds like it could be the fuel shutoff or petcock located under the fill door. There is a diaphragm that gets brittle and loses vacuum. Rebuild kits sold online.
available here from CycleMax

https://www.cyclemax.com/inc/sdetail/gl ... _kit/20457



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bluthundr31
Posts: 503
Joined: Tue Jul 11, 2017 11:43 pm
Location: Morgan Hill, CA.
Motorcycle: 1991 GL1500 Interstate (Cinnamon Beige)

Re: Gl 1500 engine wont stay running

Post by bluthundr31 » Sat Jul 20, 2019 12:54 am

Its not a bad idea to do BOTH, , , soak the gas cap in seafoam overnight seems easy enough. 24 yrs of gunk, rust and crud can be a horrible thing.

You can troubleshoot the petcock/diaphragm issue if you "by-pass" the fuel petcock by disconnecting the "input" side (nearest the fuel filter) and connect it to the line that is the "output" of the fuel petcock. If it runs fine after the bypass, , , its a good bet that the diaphragm is bad and needs to be replaced.

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4given
Posts: 84
Joined: Fri Jul 17, 2015 6:19 pm
Location: danville/PA/
Motorcycle: 1996 honda goldwing aspencade GL1500
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Re: Gl 1500 engine wont stay running

Post by 4given » Sat Jul 20, 2019 5:00 am

DenverWinger wrote:
Fri Jul 19, 2019 9:46 pm
Might also check to see if loosening the gas cap restores normal running. If gas cap vents get plugged you can form a vacuum in the tank and the pump can't overcome the vacuum to push fuel. Fix for that is to soak the gas cap in Seafoam overnight.....
That too. And as Bluthundr thunder says, both. Gas cap first because it will cost you less time and $.

RoberT75
Posts: 9
Joined: Fri Jul 19, 2019 8:13 pm
Location: Benton, Illinois
Motorcycle: 1995 Goldwing GL 1500 LE

Re: Gl 1500 engine wont stay running

Post by RoberT75 » Sat Jul 20, 2019 7:45 am

Thanks to you all. I'm gonna try these things and see what happens. Hopefully that fixes it.

RoberT75
Posts: 9
Joined: Fri Jul 19, 2019 8:13 pm
Location: Benton, Illinois
Motorcycle: 1995 Goldwing GL 1500 LE

Re: Gl 1500 engine wont stay running

Post by RoberT75 » Wed Jul 24, 2019 3:25 pm

I soaked the gas cap for 48 hours in seafoam and then cleaned it up and blew air through it. I sprayed it up with wd40 to hopefully lube it. I drove the bike yesterday and filled the gas tank up. It seemed to perform fine. It acted like it was gonna struggle once but didn't. I'll ride it some more and see if the petcock is next...

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raven41951
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Location: Haverhill, MA
Motorcycle: 2016 GL1800
1994 GL1500SE (sold)
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1975 Kawasaki 500

Re: Gl 1500 engine wont stay running

Post by raven41951 » Wed Jul 24, 2019 4:21 pm

Just for s... and giggles, check your voltage at idle to make sure its charging. RPMs need to be 800-900 to charge the battery at idle. The volts should be 14.8 +/- to charge and if it falls below 12 (at idle) then the battery is discharging and once its below 11 the engine will die and seem as if its out of gas, even though the starter will turn, there needs to be enough voltage/amperage (=power or wattage) to run the ignition system.

I idled mine at 600rpm and learned the hard way.

RoberT75
Posts: 9
Joined: Fri Jul 19, 2019 8:13 pm
Location: Benton, Illinois
Motorcycle: 1995 Goldwing GL 1500 LE

Re: Gl 1500 engine wont stay running

Post by RoberT75 » Thu Jul 25, 2019 10:19 am

Mine has also been idling between 600 and 750. Hmmm.

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bluthundr31
Posts: 503
Joined: Tue Jul 11, 2017 11:43 pm
Location: Morgan Hill, CA.
Motorcycle: 1991 GL1500 Interstate (Cinnamon Beige)

Re: Gl 1500 engine wont stay running

Post by bluthundr31 » Mon Jul 29, 2019 3:45 pm

My "charging system" seems to prefer an idle of 950 +/- to maintain a solid 13.8v display on my voltmeter. It'll rise to 14.0 in town and 14.2-14.3v on the freeway. I've maintained about 35 mpg for a couple years now, , that's acceptable for my needs. I choose to not jeopardize the "charging system" for the sake of a couple mpg's.

Just my .02 cents, , , ,

RoberT75
Posts: 9
Joined: Fri Jul 19, 2019 8:13 pm
Location: Benton, Illinois
Motorcycle: 1995 Goldwing GL 1500 LE

Re: Gl 1500 engine wont stay running

Post by RoberT75 » Wed Jul 31, 2019 10:33 am

After replacing the fuel filter and cleaning my k&n air filter the bike is running good. I also changed the oil while i was at it. I'd like it to idle a little better but it's doing fine for now.. idle rpms have been at 750ish.



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