1981 GS1100 missing aluminum plug carb

[alhntr]

I have a 1981 GS1100E I'm working on. After no success last year getting bike started I just pulled the carbs to clean, new O rings etc. On number 2 carb, from the under the bowl gasket opposite the needle end there is a back washer/ring that fits under the gasket and sits on a plug. Well number 2 carb there is no plug just a open hole. Maybe it fell out on last cleaning and I lost it ? Is this normal ? If not I can't find it in the poor OEM crab diagrams. Any help appreciated.

[alhntr]

I have a 1981 GS1100E I'm working on. After no success last year getting bike started I just pulled the carbs to clean, new O rings etc. On number 2 carb, from the under the bowl gasket opposite the needle end there is a back washer/ring that fits under the gasket and sits on a plug. Well number 2 carb there is no plug just a open hole. Maybe it fell out on last cleaning and I lost it ? Is this normal ? If not I can't find it in the poor OEM crab diagrams. Any help appreciated.

OK, I see that I need it. Anyone have an old B34SS body laying around. Will pay

[bull958]

Are you talking about the rubber plug that goes over the pilot jet? If so, Z-1 sells them.

[alhntr]

No, it fills the hole where the black ring sets under the carb gasket. You wont notice it until you loose it like me last year. Hate to look and buy a body even if I find one for that dang plug.

[Nessism]

I've cut apart carb bodies just for those plugs before. They are tapered but sometimes fall out.
I think I've got a scrap BS32 body but let me check. Gotta figure out if the plug is the same too. Stay tuned...

[Nessism]

Got a plug. PM me if you want it.

[pdqford]

Anybody have a picture of this “plug” , a picture of where it goes, and what it does?

[Nessism]

Anybody have a picture of this “plug” , a picture of where it goes, and what it does?

Check page 50 of the carb rebuild tutorial linked in my signature.

The plug blocks a passage that allows machining (drilling holes) in the carb body during manufacturing.

[pdqford]

Thanks Ed. Does that need a gasket (13258-44080) in addition to the float bowl gasket to keep it from causing an air leak?

[Nessism]

Thanks Ed. Does that need a gasket (13258-44080) in addition to the float bowl gasket to keep it from causing an air leak?

There is supposed to be a flat O-ring like seal over the plug which the gasket sits on top of.

https://www.partzilla.com/product/su...1b8d785acc176f

[CC83]

Carbs.jpgHere are my carbs out of a 81 550. I noticed while cleaning that 3 outa 4 are missing. Im guessing I need 3 plugs to put back in. Anyone know where these can be found? I found a site that might have something I might be able to use im gonna confirm size when I get home and from what Ive read I need so o rings also in there. Thank you for any help. Unfortunately carbs have been taken apart by prior owners.

[steve murdoch]

A good idea while you have the carbs off is to replace the intake o-rings as well.

http://www.cycleorings.com/

Don't know if he carries the plugs or not.

Welcome to the site.

[Nessism]

The only place to get those plugs is by cutting apart a set of carbs. Or cutting some with a lathe.