Working on carbs


Information and questions on GL1200 Goldwings (1984-1987)
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GrimReaper86
Posts: 25
Joined: Sat Aug 02, 2014 1:15 pm
Location: Poplarville, MS
Motorcycle: 1986. GL1200A Aspencade

Working on carbs

Postby GrimReaper86 » Mon Dec 22, 2014 11:47 am



After re - placing the starter, my 1200 Aspy was starting just great until the choke cable snapped at the handlebar lever. From what I've read, the carbs have to be moved to replace the cable. I have the new cable and a set of new orings on order. But after looking at where the intake tube meets the cylinder head, it looks like a gasket is there. I've not seen anything listing a gasket. Is there a gasket or just the o-ring? And should I be coating the orings upon reinstall?
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Left rear carb
Left rear carb



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virgilmobile
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Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
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84 GL 1200 I

Re: Working on carbs

Postby virgilmobile » Mon Dec 22, 2014 12:43 pm

Just a "O" ring, i just clean the surfaces..no sealer needed...and beware....the round thingy to the right in your picture has a "O" ring in there too...
Mine were stuck good..I had to soak them to get them out(corrosion you know)...they come out attached to carb body...
I mix my own penetrating oil...50% ATF and 50% acetone...Works great..

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flash2002
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Joined: Mon Aug 30, 2010 6:38 pm
Location: Montreal, Canada
Motorcycle: gold wing 1800
2003

Re: Working on carbs

Postby flash2002 » Wed Dec 24, 2014 7:54 am

Virgil, what do you mean by round thingy? on my 1200 there is only one O ring on each intake why would there be two.

tprender
Posts: 188
Joined: Wed Mar 23, 2011 9:11 pm
Location: St Louis, Mo
Motorcycle: 1986 gl1200
1995 GL1500SE

Re: Working on carbs

Postby tprender » Wed Dec 24, 2014 8:17 am

What he is taking about the round looking tube on the right side of the picture. This tube is connected to a black hose that goes to the bottom of the carb. Use a screw driver to pry up this tube. There is a o-ring on this tube. You will need to remove this tube to get the carbs off of the bike, there is one on each carb.

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flash2002
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Motorcycle: gold wing 1800
2003

Re: Working on carbs

Postby flash2002 » Wed Dec 24, 2014 9:59 am

I just went down to my work shop to check on the two 1200's motors I have on the bench and unless you are showing a different motor, my 1200's don't have what you are talking about. The ones I have are 84's would they be different on newer models.

tprender
Posts: 188
Joined: Wed Mar 23, 2011 9:11 pm
Location: St Louis, Mo
Motorcycle: 1986 gl1200
1995 GL1500SE

Re: Working on carbs

Postby tprender » Wed Dec 24, 2014 12:07 pm

Does the 2 engines still have the carbs? If they are on the engine the tube is there. If the carbs are off the engine, look to the side of the intake hole. You will see a smaller hole(about 1/2") just to the side about 1/2" lower than the intake area.

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flash2002
Posts: 178
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Location: Montreal, Canada
Motorcycle: gold wing 1800
2003

Re: Working on carbs

Postby flash2002 » Wed Dec 24, 2014 4:08 pm

I will take another look later and if I don't see it I will take a picture.

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flash2002
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Motorcycle: gold wing 1800
2003

Re: Working on carbs

Postby flash2002 » Thu Dec 25, 2014 10:10 am

Got a few pictures you will see there are no O rings on the side of the intake, only the big one on the intake. All four intakes are the same.
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tprender
Posts: 188
Joined: Wed Mar 23, 2011 9:11 pm
Location: St Louis, Mo
Motorcycle: 1986 gl1200
1995 GL1500SE

Re: Working on carbs

Postby tprender » Thu Dec 25, 2014 11:47 am

That engine does not have the holes. You can see the flat area to the side where the holes should be. I am not that much of an expert on the changes of each engine. Maybe it is an early 1200 engine?

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flash2002
Posts: 178
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Location: Montreal, Canada
Motorcycle: gold wing 1800
2003

Re: Working on carbs

Postby flash2002 » Thu Dec 25, 2014 12:50 pm

I took a look at the different year's and none of them show a second O ring, strange.

GrimReaper86
Posts: 25
Joined: Sat Aug 02, 2014 1:15 pm
Location: Poplarville, MS
Motorcycle: 1986. GL1200A Aspencade

Re: Working on carbs

Postby GrimReaper86 » Thu Dec 25, 2014 3:25 pm

Ok, do we need new o-rings for the smaller tubes?

And, in the photo, there is some type of leak at the intake. If I leave the bike a couple of days without turn the fuel valve to off, it will leak onto the top of the block just to the inside of the intake. Would this be a stuck float valve?

I figure if I have to move the carbs to replace the choke cable, I might as well clean them. Is cleaning the same as re-building them?

:?

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flash2002
Posts: 178
Joined: Mon Aug 30, 2010 6:38 pm
Location: Montreal, Canada
Motorcycle: gold wing 1800
2003

Re: Working on carbs

Postby flash2002 » Thu Dec 25, 2014 3:51 pm

From what you are saying and the looks of the intakes, it might be smart to rebuild or at lease clean the carbs and check the floats. If you'r going to do this, change all the O rings you can see.

tprender
Posts: 188
Joined: Wed Mar 23, 2011 9:11 pm
Location: St Louis, Mo
Motorcycle: 1986 gl1200
1995 GL1500SE

Re: Working on carbs

Postby tprender » Thu Dec 25, 2014 4:02 pm

Cleaning is not the same as rebuilding, this is what I did with the carbs on the '86 that I picked up 2 years ago that had been setting for 4 years. Took the carbs out of the bike and soaked them in Pine Sol for 2 days each side. Didn't take them off of the center section. Got a small wire from a wire brush and ran it though any hole that I could see and all of the jets that I had removed. Sprayed with carb cleaner and then shot air into all of the parts. Got new base gaskets for all of the float bowls. Put grease on the o-rings on the end of the endtake tubes and the other o-rings on the 4 pipes. Put it all back together and sync the carbs after I got it running. Then during the summer had a gas leak on the left side when the bike was running. It turned out to be the gas fill tube between the 2 left carbs. Took the carb rack back out and replaced all of the 0-rings on the 3 tubes between the 2 carbs on both side(12 o-rings). An, being that I had them out replaced all of the vacumn lines, should have done this when I had them out the 1st time. Now, some people will not like what I did, but it worked for me and it only cost me less that $25 and $13 each time.
You can change the chock cable without taking the carbs completely out of the bike. Push and lift the carbs to the left side of the bike as much as possible and you can get to the 2 little screws that hold the cable in front of the body. You might be able to replace the cable with out removing the throttle cables. But, you got it this far, take the carbs and and give them a good cleaning, just for safe keeping.




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