1986 1200A Carburator Dissasembly


Information and questions on GL1200 Goldwings (1984-1987)
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jhcruzr
Posts: 4
Joined: Wed Mar 23, 2016 6:28 pm
Location: North Carolina
Motorcycle: 1986 GL1200A Aspencade

1986 1200A Carburator Dissasembly

Postby jhcruzr » Tue May 10, 2016 11:54 am



I'm in the process of rebuilding my 1200A Carburetors and have come across an issue which is a bit confusing to me. So, here I am asking a question to see if anyone can point me in the right direction before I put the carburetors back together. When I removed the cover, spring, diaphragm, and jet from the carburetor I noticed that the jet had two washers. I have three different manuals that I am using to make sure I do this right since it's the first time I do this and none of them show the needle having two washers. So my question is, has anyone come across this issue before and if so, which is right, the manuals or my carburetors?

All the manuals I'm using have been 100% right in the exploded view of the carburetor with all its parts listed so I'm not sure if my carburetors are supposed to have these two washers or not. Any comments or suggestions would be greatly appreciated.

Thanks for any assistance offered.



User avatar
virgilmobile
Posts: 7663
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: 1986 1200A Carburator Dissasembly

Postby virgilmobile » Tue May 10, 2016 1:54 pm

The jets do not have washers.
The needle hanging from the slide Did not have any from the factory(to my knowledge).
My 1200 suffered from a bit of a lean condition in the 2000-3000rpm range,proven by applying a bit of "choke".
To resolve this,I did add a flat washer under the needle retainer to lift it a bit.This increased the fuel mixture just right.
I suspect that a previous owner had the same problem and did the same.
If you have washers lifting the needle,put them back and check the other carbs for exactly the same washers...Inspect the slide rubbers for pinholes and keep them in the same carb they lived in.Polish them and the bore clean too.Take special care with the rubbers..be sure there seated properly before you set the cap.
Don't forget to pre-sync the carbs on the bench,shop vac test the slide action and fill with fuel to check for leaks and that the floats sealed.
Final sync on the bike at 1000 rpm then back it to 900 for idle.

jhcruzr
Posts: 4
Joined: Wed Mar 23, 2016 6:28 pm
Location: North Carolina
Motorcycle: 1986 GL1200A Aspencade

Re: 1986 1200A Carburator Dissasembly

Postby jhcruzr » Mon May 23, 2016 5:03 pm

Thanks for the advise virginmobile. I followed your suggestions and ended up with a better running bike than when I bought it. I'm super happy with the results and even though it was the first time I rebuilt carburetors. I'm so glad I was able to find this site with all the information available plus all the help I got from the forum users.

Thanks to all those who provided suggestions.

User avatar
virgilmobile
Posts: 7663
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: 1986 1200A Carburator Dissasembly

Postby virgilmobile » Mon May 23, 2016 6:06 pm

Great to hear.They can be a wonderful ride.




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