Idle issues and rich gas


Information and questions on GL1500 Goldwings (1988-2000)
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Drewbe
Posts: 1
Joined: Fri Feb 05, 2016 8:29 pm
Location: California
Motorcycle: 1990 GL1500

Idle issues and rich gas

Postby Drewbe » Tue Feb 09, 2016 5:47 pm



Hello. I just got a 1990 Honda Goldwing 1500 SE with 66K miles this weekend. I am having some issues with the bike. The motorcycle does not want to idle. If I put it in gear with the clutch engaged, I have to rev the engine to keep it from shutting off. When I come up to a stop and have to down shift the engine will die as well. There is also a very rich fuel smell from the motorcycle. I know it was sitting for awhile and the person added some chem tool to the fuel before it set. Any ideas to help me get this bike running again are greatly appreciated.

Thank you,
Drew



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virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Idle issues and rich gas

Postby virgilmobile » Tue Feb 09, 2016 7:17 pm

Certainly we can guess.
Without a known history however,it will be a "going in blind" scenerio.I suspect you will do the same.Assume nothing..including that the bike was in perfect running condition before the fuel was treated (if it actually was).
Personally I'd suggest removing any "old" fuel,starting with a fresh tank of fuel and a ride round town to see if it settles dow.
The bike should idle smooth around 7--800 rpm in or out of gear.
General service should be done to eliminate the easy stuff...Spark plugs,air cleaner.
If there good,you may need a bit more service under the hood.
My (new to me)88 would not idle below 1500 rpm.Both idle jets were plugged..After fixing the carbs (they also set up a while) I had the "surging problem"...Cured by replacing several bad vacuum lines.
Keep reading an searching this site for possible answers.There will be variations on descriptions of problems.
Generally,if it won't idle properly,you verify...spark,compression and fuel.Spark and compression are easy...It's the fuel that causes the most headaches and truthfully,I've not found a snake oil that fixes a carb problem yet.They can help a bit to keep them clean but not replace a mechanics touch.

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dovesdrummer
Posts: 27
Joined: Mon Jan 18, 2016 7:58 pm
Location: Sanger,Texas
Motorcycle: 1997 GL 1500 SE.

Re: Idle issues and rich gas

Postby dovesdrummer » Tue Feb 09, 2016 8:14 pm

I bought a '97 that had been sitting for a while and had the same symptoms. Carb sync fixed the problem. Runs great now. Good luck
:mrgreen:

User avatar
flogger
Posts: 371
Joined: Thu Nov 12, 2015 3:45 pm
Location: Indiana
Motorcycle: 1996 GL1500SE GoldWing
1983 GL650i SilverWing
1981 CB750C Custom
1981 CM400 (Newest Project)

Re: Idle issues and rich gas

Postby flogger » Tue Feb 09, 2016 8:20 pm

virgilmobile wrote:It's the fuel that causes the most headaches and truthfully,I've not found a snake oil that fixes a carb problem yet.They can help a bit to keep them clean but not replace a mechanics touch.


Any snake oils you recommend for keeping carbs clean or for helping with the growing ethanol issues? Maybe as a monthly or periodic treatment?
1996 GL1500SE GoldWing
1983 GL650i SilverWing
1981 CB750C Custom
1981 CM400 (project)

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Bluewaterhooker0
Posts: 557
Joined: Wed Nov 14, 2012 11:27 pm
Location: Tampa, Fl
Motorcycle: 1997 Goldwing GL 1500 SE

Re: Idle issues and rich gas

Postby Bluewaterhooker0 » Tue Feb 09, 2016 9:12 pm

flogger wrote:
virgilmobile wrote:It's the fuel that causes the most headaches and truthfully,I've not found a snake oil that fixes a carb problem yet.They can help a bit to keep them clean but not replace a mechanics touch.


Any snake oils you recommend for keeping carbs clean or for helping with the growing ethanol issues? Maybe as a monthly or periodic treatment?


I've been using Seafoam in virtually every tank of gas since I got the bike 3 years ago. It initially had a surging issue at idle, 800-1200. The Seafoam took care of that, but the surge returned a few tanks later. So, I started using it at every fill. Just recently stopped doing every fill, as it was probably overkill. Now, once a month. No surging issues since the initial go around.
BTW, initially a whole can for cleanup. For maintenance at every fill (now once a month), a few ounces per 3-5 gallons.

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keithg64
Posts: 342
Joined: Thu May 21, 2009 9:47 pm
Location: Geneseo, IL
Motorcycle: 2000 GL1500 Pearl Coranado Blue

Re: Idle issues and rich gas

Postby keithg64 » Tue Feb 09, 2016 9:16 pm

Seafoam has worked good for me. Run a cab through new clean fuel. If it's not a bad plugged jet it may clean it's self out .
It's not what you buy, it's what you build.

User avatar
virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Idle issues and rich gas

Postby virgilmobile » Tue Feb 09, 2016 9:51 pm

As mentioned,any additive can help a bit keeping the innards clean.
I'm sure that if you store the bike for many months,there's a section on this site of "how to" store your bike for the winter.
As for me,I don't use any additive.I serviced my bike March of 2012 and run regular ethanol gas exclusively.
I do ride year round for the most part.Not every day and sometimes it does set a month.
Even my rides are not as long as they used to be..now days it's a few hours around a back road.
What I do is keep the tank absolutely full when I park it for more than a few days.Ill top it off on the way home.
This may make no difference,but I got into the habit of opening the gas cap to relieve any pressure then locking it back down when I park it for the night.
I also keep the bike on a battery tender jr.
Other than a Walmart charger destroying my original battery,My 88 has never failed to start,run smooth and outperform every Harley in the neiborhood.
Is it a daily driver?? No..4 years..20k miles.
It still has the same rear tire,just replaced the front one...balance beads included.

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spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Idle issues and rich gas

Postby spiralout » Wed Feb 10, 2016 12:54 pm

The first thing I'd try is idling it up some and checking the petcock for leaks.




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