engine surges


Information and questions on GL1500 Goldwings (1988-2000)
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delyrey
Posts: 21
Joined: Tue Dec 08, 2015 7:25 pm
Location: lantzville b.c. canada
Motorcycle: 1996 honda goldwing gl 1500 se

engine surges

Postby delyrey » Thu Dec 10, 2015 10:05 am



i just bought a 1996 goldwing , engine surges at idle .ichanged the plugs and oil and it still surges.



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WingAdmin
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Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
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1998 XV250 Virago (sold)
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Re: engine surges

Postby WingAdmin » Thu Dec 10, 2015 10:33 am

You've replaced the plugs, so that eliminates that potential cause. A lot of the time a surging engine is due to a vacuum leak. Get a can of starting fluid, and gently spray it around the intake runners and below the carburetor. If you have a vacuum leak, as soon as it sucks in the starting fluid, the engine will rev. So spray it gently to try to localize the position of the leak.

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ct1500
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Re: engine surges

Postby ct1500 » Thu Dec 10, 2015 7:35 pm

First try to adjust the idle. Normal idle speed of the 1500 is 800RPM. Many causes for surging but the most common is carb problems.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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Bluewaterhooker0
Posts: 558
Joined: Wed Nov 14, 2012 11:27 pm
Location: Tampa, Fl
Motorcycle: 1997 Goldwing GL 1500 SE

Re: engine surges

Postby Bluewaterhooker0 » Thu Dec 10, 2015 7:48 pm

Solved mine by 1/2 can each, of Seafoam through 2 tanks of gas, letting it idle quite a bit, as well as just riding it. Surge went away. Came back a few weeks later. So, I treated it again, and now add a couple of ounces of Seafoam to every tank for the past 3 years. No recurrence of the problem.

delyrey
Posts: 21
Joined: Tue Dec 08, 2015 7:25 pm
Location: lantzville b.c. canada
Motorcycle: 1996 honda goldwing gl 1500 se

Re: engine surges

Postby delyrey » Thu Dec 10, 2015 7:55 pm

thanks i did add seafoam and i'll adjust idle

delyrey
Posts: 21
Joined: Tue Dec 08, 2015 7:25 pm
Location: lantzville b.c. canada
Motorcycle: 1996 honda goldwing gl 1500 se

Re: engine surges

Postby delyrey » Thu Dec 10, 2015 7:57 pm

did i mention i bought the bike on ebay,flew to austin texas and rode it to vancouver island this week. 4 days 4 hours to border.

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mikeblakeney
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Location: Monroe, Louisiana
Motorcycle: 1997 1500 SE
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Re: engine surges

Postby mikeblakeney » Fri Dec 11, 2015 12:38 am

I have a 97 SE that was doing the surging thing. Following the suggestion on another thread I lubricated the
idle adjust knob/cable and then cycled it several times from stop to stop and then set it at about 800.
It cured mine. Your mileage may vary of course but it's worth a try. I did run a can of seafoam through mine
also later and it did seem to improve overall running and performance.
MikeB
Monroe, LA
Mike Blakeney
Monroe, LA
1997 1500 SE

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Mh434
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Re: engine surges

Postby Mh434 » Fri Dec 11, 2015 11:26 pm

I had a similar problem, and the Seafoam cured it. Took about 7-8 tanks of treated gas, and several weeks, but one day it suddenly started to smooth out and, within 20 minutes, it was purring smoothly again.

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Fatwing Chris
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Location: Ont.,Canada
Motorcycle: 2004 ABS Model Goldwing

Re: engine surges

Postby Fatwing Chris » Sat Dec 12, 2015 9:36 am

mikeblakeney wrote:I have a 97 SE that was doing the surging thing. Following the suggestion on another thread I lubricated the
idle adjust knob/cable and then cycled it several times from stop to stop and then set it at about 800.
It cured mine. Your mileage may vary of course but it's worth a try. I did run a can of seafoam through mine
also later and it did seem to improve overall running and performance.
MikeB
Monroe, LA


This does work.Fixed my 89 a few years back.
If I'da known it would last this long,I'da taken better care of it.
Chris
Double Dark
Darkside # 1602

gford
Posts: 33
Joined: Fri Feb 10, 2012 8:55 pm
Location: Canada
Motorcycle: 1999 Goldwing SE

Re: engine surges

Postby gford » Sat Dec 12, 2015 1:19 pm


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cardinal
Posts: 179
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Location: Fresno, Ca.
Motorcycle: 1998 GL 1500SE

Re: engine surges

Postby cardinal » Wed Dec 16, 2015 1:30 am

I just bought a 98 that surges at idle. It sat for a year and a half without treating the gas. When we opened up the carbs they smelled kind of varnish so they have been cleaned. Just waiting to put it back together now. If cleaning and syncing the carbs doesn't fix the problem, I'll have them change the part referenced in the article linked to above.

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cardinal
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Re: engine surges

Postby cardinal » Tue Dec 22, 2015 1:38 am

OK, carb cleaning didn't fix the fast idle and surging problem. I'll adjust the idle down, in the morning, and see if that does anything to the surging.
The choke lever is very sticky. Anyone ever lubricated the cable? Or experienced this sticky choke lever issue?

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kane67
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Location: Vantaa, Finland
Motorcycle: Honda GL1500-88

Re: engine surges

Postby kane67 » Tue Dec 22, 2015 5:05 am

I just found out that my sticky choke cable was keeping left carb starter valve a bit open. PO had installed an extra return spring :shock: because of that...
viewtopic.php?f=6&t=31125
Anyways, it was backfiring and surging (= fluctuate idle) a bit.

Tried to lubricate, no good... get a new one.

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Wingsconsin
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Motorcycle: 2002 GL1800 - Pearl Orange
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Re: engine surges

Postby Wingsconsin » Tue Dec 22, 2015 11:41 am

If you have the carbs off for a cleaning it is a good time to re-do the vacuum hoses as well.
Those are most often the cause of surging issues.-- especially the one under the rubber mat under the carbs..

http://www.jmartino.me/carb/
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


Motorcycle Adventure Storys writen by me
http://neverlost-justexploring.blogspot.com/

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ct1500
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Re: engine surges

Postby ct1500 » Tue Dec 22, 2015 5:28 pm

cardinal wrote:OK, carb cleaning didn't fix the fast idle and surging problem.


What exactly did you do to the carbs?
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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cardinal
Posts: 179
Joined: Thu Jun 10, 2010 11:26 pm
Location: Fresno, Ca.
Motorcycle: 1998 GL 1500SE

Re: engine surges

Postby cardinal » Tue Dec 22, 2015 7:13 pm

Cleaned them. The bike had sat for a year and a half without being prepared for storage. I paid a shop to do the job.

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cardinal
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Location: Fresno, Ca.
Motorcycle: 1998 GL 1500SE

Re: engine surges

Postby cardinal » Tue Dec 22, 2015 8:40 pm

Strange part is that when the engine is cold it idles just fine. After it runs at highway speeds for a while, it idles at about 1100 and surges to 1250. No surge at anything over 1250 or so rpm. Gas mileage is about the same as I get on my '95.

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Wingsconsin
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Motorcycle: 2002 GL1800 - Pearl Orange
1996 GL1500 Aspencade - Pearl Blue
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Re: engine surges

Postby Wingsconsin » Wed Dec 23, 2015 10:12 pm

My experience with dealers and carb cleans tells me they probably didn't do it well. A complete carb clean includes jet removal, holes poked, ultrasonic cleaning , new orings and gaskets, carefully cleaned and properly measured floats followed by synching with a vacuum manometer establishing highest idle and vacuum while running at normal operating temperature.

Anything less is a short cut and may not yield positive results. Dealers often do not have experienced techs who know how to work the 1500 normally aspirated carbs.

Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


Motorcycle Adventure Storys writen by me
http://neverlost-justexploring.blogspot.com/

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ct1500
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Re: engine surges

Postby ct1500 » Thu Dec 24, 2015 2:05 pm

Wingsconsin wrote:My experience with dealers and carb cleans tells me they probably didn't do it well. A complete carb clean includes jet removal, holes poked, ultrasonic cleaning , new orings and gaskets, carefully cleaned and properly measured floats followed by synching with a vacuum manometer establishing highest idle and vacuum while running at normal operating temperature. Anything less is a short cut and may not yield positive results. Dealers often do not have experienced techs who know how to work the 1500 normally aspirated carbs.


What you describe would be termed a carb rebuild. It is done when the mechanic has diagnosed a problem within them and is the appropriate course of action when the mechanic or shop guarantee the outcome and workmanship of a repair. Reusing vital O rings, gaskets and seals on old machines is dicey at best for good business and shop practice. Repair it right the first time. :D A carb "cleaning" is way too generic a term in the repair field when the mechanic should be able to tell an owner what part or circuit of a carb is causing the particular problem.

To Cardinal, so a Shop diagnosed the carbs as at fault, gave them a "cleaning" and sent you on your way after collecting your hard earned money and still not right? :?:
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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cardinal
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Joined: Thu Jun 10, 2010 11:26 pm
Location: Fresno, Ca.
Motorcycle: 1998 GL 1500SE

Re: engine surges

Postby cardinal » Thu Dec 24, 2015 4:01 pm

Carb was filled with gas that was a year and a half old, minimum. Shop "cleaned" the carb, removed and cleaned the jets, replaced the gaskets, all the filters and synced the carbs. This is what I authorized them to do. The bike only has 27,000 miles on it and we figured a decent cleaning and synchronizing the carbs would take care of it. When it came out of the shop, it was idling smooth at about 800 rpm and not surging.
I ran it at highway speeds for about 130 miles then stopped at the shop on the way home. During the ride, the idle had kicked up to about 1000 and it would surge to around 1150. At the shop, we adjusted the idle back down to around 800 and it wasn't surging. They sprayed some lubricant on the choke arm because it was sticky, said ride it for a bit and see if the surging problem is fixed and if the choke loosens up. I rode it 15 miles home, idle was up to just over 900 but there was no surging. Choke is still sticky, so I'll stop by the shop and they'll Lube the cable. Shop didn't "Take my money and send me on my way." They did what they felt was needed without running up the costs and are fixing little idiosyncrasies on the bike as they show up. We take care of these minor problems together and they don't charge me. I ride an extra 10 miles to get to this shop because I trust them and they have done good work for me in the past.
My son and I put a new engine in my 1995 Goldwing. When we finished, we couldn't get it started......we couldn't even get it to turn over. One shop, the one I drive past to get to the one I deal with now, didn't want to mess with it because they hadn't had anything to do with installing the engine and didn't want to take responsibility for anything that went wrong after they dealt with it. My current shop took it in, had it running in an hour and charged me $85. I trust them, only problem I have with them is the amount of time I have to wait for them to get started on my bike..........yes, they are backed up several weeks because a lot of other people trust them, too.




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