Bike had a slight misfire this cold am.


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Davek80514
Posts: 110
Joined: Mon Apr 16, 2012 1:18 pm
Location: Dacono, Colorado
Motorcycle: 1992 Goldwing 1500 SE

Bike had a slight misfire this cold am.

Postby Davek80514 » Sat Sep 28, 2013 4:36 pm



'92 wing had a slight misfire this cold am and after riding it it's getting worse. Had new plugs put in about 6000 miles ago. What should I check for and in what order?

Dave in Colorado.
T.I.A.
(Thanks in Advance)


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redial
Posts: 1993
Joined: Mon Jan 03, 2011 1:17 am
Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: Bike had a slight misfire this cold am.

Postby redial » Sun Sep 29, 2013 8:43 pm

Crappy fuel?
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

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Fiberthree
Posts: 447
Joined: Fri Nov 23, 2012 4:06 pm
Location: Behind the windshield
Motorcycle: Black 1999 GL1500SE

Re: Bike had a slight misfire this cold am.

Postby Fiberthree » Sun Sep 29, 2013 9:56 pm

Plug wire condition.
Ed

WARNING: All posts are subject to influence from an uncontrollable dominant sarcastic gene. Offensive remarks may or may not be intentional.

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FM-USA
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Joined: Wed May 18, 2011 8:40 am
Location: USA-ILL-60085
Motorcycle: .
'91 GL1500-I (Dbl-Darkside)
Acquired:__51K_Jun_??/2007
MADE_IT!_200K_Oct_17/2016
iRide 24/365 99% SmileMiles
================
"You don't buy yourself a
HD to be SATISFIED,...
you buy it to keep your
HD friends PACIFIED."
================
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ANTAGONISTS need not post.
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==================

Re: Bike had a slight misfire this cold am.

Postby FM-USA » Tue Oct 01, 2013 6:53 am

Welcome to the world of ethanol that's forced upon us by our 'oh so ever caring' Government.
This ethanol-garbage eats plastics and rubber.
I had this problem start about 2 years ago, backfire once to few times a year at randomness.
Check your petcock diaphragm. You may find the bottom edge has a ever so slight hole in it.
"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.

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Davek80514
Posts: 110
Joined: Mon Apr 16, 2012 1:18 pm
Location: Dacono, Colorado
Motorcycle: 1992 Goldwing 1500 SE

Re: Bike had a slight misfire this cold am.

Postby Davek80514 » Sun Oct 13, 2013 10:28 am

Any way to get the petcock out for rebuild through the gas door? Not looking forward to taking all the body stuff apart to do this.

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FM-USA
Posts: 2006
Joined: Wed May 18, 2011 8:40 am
Location: USA-ILL-60085
Motorcycle: .
'91 GL1500-I (Dbl-Darkside)
Acquired:__51K_Jun_??/2007
MADE_IT!_200K_Oct_17/2016
iRide 24/365 99% SmileMiles
================
"You don't buy yourself a
HD to be SATISFIED,...
you buy it to keep your
HD friends PACIFIED."
================
|
ANTAGONISTS need not post.
|
==================

Re: Bike had a slight misfire this cold am.

Postby FM-USA » Sun Oct 13, 2013 3:26 pm

Davek80514 wrote:Any way to get the petcock out for rebuild through the gas door? Not looking forward to taking all the body stuff apart to do this.

2168.jpg

It's a rather tight space going through the gas door undoing the fuel line clamps. Kinda like pulling a rear molar tooth. You will have a lot more room to work with the following out of the way. AND less chance of fuel spills and/or leaks.
.
Unsnap 2 handlebar collars, remove 2 fairing pouch covers, remove seat, remove 2 10mm acorn nuts (that was under the seats front edge), open fuel door and unlatch 2 shelter cover holders (just to each side of the petcock - partly hidden) and lift shelter. About 3.5 to 5 minutes prep work. With these items off, inspect the air filter, etc. etc's..
.
Remove & disassemble petcock over an old white T-shirt that's inside out. T-shirt catches parts, easier to see dropped items and inspect any gunk.
I've done this a couple times now, it's really no big deal AFTER the first time.
GL - Floyd
"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.

User avatar
Davek80514
Posts: 110
Joined: Mon Apr 16, 2012 1:18 pm
Location: Dacono, Colorado
Motorcycle: 1992 Goldwing 1500 SE

Re: Bike had a slight misfire this cold am.

Postby Davek80514 » Sun Oct 13, 2013 7:01 pm

FM-USA wrote:
Davek80514 wrote:Any way to get the petcock out for rebuild through the gas door? Not looking forward to taking all the body stuff apart to do this.

2168.jpg

It's a rather tight space going through the gas door undoing the fuel line clamps. Kinda like pulling a rear molar tooth. You will have a lot more room to work with the following out of the way. AND less chance of fuel spills and/or leaks.
.
Unsnap 2 handlebar collars, remove 2 fairing pouch covers, remove seat, remove 2 10mm acorn nuts (that was under the seats front edge), open fuel door and unlatch 2 shelter cover holders (just to each side of the petcock - partly hidden) and lift shelter. About 3.5 to 5 minutes prep work. With these items off, inspect the air filter, etc. etc's..
.
Remove & disassemble petcock over an old white T-shirt that's inside out. T-shirt catches parts, easier to see dropped items and inspect any gunk.
I've done this a couple times now, it's really no big deal AFTER the first time.
GL - Floyd


I got the petcock rebuilt and that fixed most of the problem. Now I just have some hesitation coming off idle, at about 1100 rpm it straightens out and runs fine. Never has that hesitation before.
Image

User avatar
FM-USA
Posts: 2006
Joined: Wed May 18, 2011 8:40 am
Location: USA-ILL-60085
Motorcycle: .
'91 GL1500-I (Dbl-Darkside)
Acquired:__51K_Jun_??/2007
MADE_IT!_200K_Oct_17/2016
iRide 24/365 99% SmileMiles
================
"You don't buy yourself a
HD to be SATISFIED,...
you buy it to keep your
HD friends PACIFIED."
================
|
ANTAGONISTS need not post.
|
==================

Re: Bike had a slight misfire this cold am.

Postby FM-USA » Sun Oct 13, 2013 8:04 pm

I have that same hesitation, same RPM's.
Since my bike is currently my only vehicle, I'm not taking it apart to find the problem.
So I live with it by slight choke till that RPM range has passed.
At 152K on OEM vac lines I'm sure my problem is a small vac leak somewhere, but no positive.
.
One this I have found is when I use non-ethanol gas or SeaFoam or Carb-Cleaner in the fuel I don't get that hesitation.
.
If you find your hesitation, let me/us know.
Thanks
FM


"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.


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