emission / exhaust gases


Information and questions on GL1100 Goldwings (1980-1983)
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ernest rudshtein
Posts: 49
Joined: Sun Oct 01, 2017 2:15 pm
Location: israel
Motorcycle: 1980 gl1100 interstate

emission / exhaust gases

Post by ernest rudshtein »



hi ppl
81 gl interstate.
i have a strong smell of exhaust gases, emission gas, while i ride.constantly.it gets circulated behind the fairing straight to my face.takes years of my life (in the long run) :? :cry: :o
if i crank it on the high-way, smell gets worse
seems like i have a hole or sth in the exhaust that i can't find (?!)
any ideas?
appreciated


Probably the only goldwing with a surfboard rack

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ride dont hide
Posts: 85
Joined: Mon Mar 13, 2017 8:11 pm
Location: Keithsburg Il.
Motorcycle: 83 GL 1100 80 CB 750K 68 BSA Royal Star 69 BSA Firebird 69 Triumph Chopper 60 BMW R26 and more.

Re: emission / exhaust gases

Post by ride dont hide »

Had the same problem. Finally found the exhaust leak. It was under the rear mounting bracket. Push your little finger between the bracket and pipe to check for a rough spot. ( disclaimer-of course the muffler has to be cooled off). Had to remove the exhaust to fix it. Fabbed a small metal piece to cover the hole and welded it to the muffler. Cured the problem, no more stink....

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RBGERSON
Posts: 3233
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: emission / exhaust gases

Post by RBGERSON »

Add some sea foam to make her smoke more..might make it easier to id leak.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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ernest rudshtein
Posts: 49
Joined: Sun Oct 01, 2017 2:15 pm
Location: israel
Motorcycle: 1980 gl1100 interstate

Re: emission / exhaust gases

Post by ernest rudshtein »

tnx RIDE DONT HIDE
will check that area for sure!
RBGERSON:
we dont get sea foam here
another suggestion for making her smoke?
im facing an oil change soon, can i use baby oil or other smoke making substance?
tnx
Probably the only goldwing with a surfboard rack

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ekvh
Posts: 409
Joined: Thu Apr 29, 2010 9:52 am
Location: Grand Forks, ND
Motorcycle: 1977 gl1000

Re: emission / exhaust gases

Post by ekvh »

With a warm motor you can use a mister of water straight into the plenum to create steam. Some guys do this to decarbon the combustion chambers.

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DenverWinger
Posts: 1555
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: emission / exhaust gases

Post by DenverWinger »

Unscrew the sparkplugs and squirt in about an eyedropper of motor oil and replace the plugs. Won't hurt anything, and it'll make some decent smoke for a couple mins until it burns off..... :D That smoke will last a little longer than trying to make steam... ....or instead of taking out the sparkplugs you could just take out the little screw plugs from the intake tubes where you connect the gauges for balancing carbs and just squirt the oil into the intakes. It'll probably run with one screw missing on each side, you could squirt more oil while it's running (it'd suck it in) if you ran out of smoke and needed more....
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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shayme98
Posts: 13
Joined: Sun Sep 30, 2018 11:47 am
Location: Fresno, CA
Motorcycle: 1994 Suzuki DR350
1981 Honda GL1100 Interstate
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Re: emission / exhaust gases

Post by shayme98 »

I had exhaust smell exactly like you described when I got my bike.

The exhaust header below the head area was the culprit. Very hard to see. The factory welds will eventually rust a crack can develop. For me the crack was about 3-4 inches long. It's very hard to see with the exhaust mounted to the bike, but if you get a flash light and try to follow the header back to the pipe, you should be able to see it. It's a factory crimp weld that fails.

I dropped the exhaust and took to a welder to fix it. Only the right side had failed, but I had him do the left because it was cracking as well. Smells much less now and have peace of mind.

Let me know if you find that leak. Also you can grab a feather or piece of small toilet paper and put it up to pipe areas to 'see' the leak.

It could also be from your exhaust coupler tube which joins the left and right side under the seat. If the paper seal is wore out, you'll get some exhaust leak there as well as I still have a small leak there, but it isn't very bothersome.

83gl1100nb
Posts: 37
Joined: Sat Feb 26, 2011 1:29 am
Location: Bothell, Wa.
Motorcycle: 83honda GL1100 Aspencade
95 Concours
82 Nighthawk

Re: emission / exhaust gases

Post by 83gl1100nb »

I have this same issue, seems to be mostly on the left side, but pretty obnoxious smell. I had some on the right side, but tightened up at the header & seems much better. Will try to see if I can locate the issue on the left side.

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newday777
Posts: 1874
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer/fall & Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored from PO neglect & sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: emission / exhaust gases

Post by newday777 »

83gl1100nb wrote:
Mon Oct 05, 2020 12:34 pm
I have this same issue, seems to be mostly on the left side, but pretty obnoxious smell. I had some on the right side, but tightened up at the header & seems much better. Will try to see if I can locate the issue on the left side.
Yes do inspect the headers for cracks. It is a common problem on these wings.
Also, the exhaust donuts get crushed when lifting the bike on a jack if you don't make a spacer to set on the motor to the jack, to keep the weight off the headers. Replace the donuts especially when you remove the headers.

Exhaust smells can also be a tell tale of rich/flooding carbs.



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