Need carb help - 1985 GS550E pilot screw question

[1978GS750E]

I'm in the process of putting life back into a 1985 GS550EF, the one with the 4-cylinder/2-carb setup. The PO said "It runs but not right". Boy what an understatement!

Anyhoo....I'm in the process of putting the carbs back together and on the pilot screws, none of the four have a washer or an o-ring on them. I've searched high and low and cannot find anything that shows the pilot screws on any drawing. It seems like the screws go really deep into the carb body, but maybe thats the way they were designed????

Anyone have any direct experience with these #$%^&* carbs? Anyone know if there is a washer and o-ring required on these pilot screws? I've never seen any carbs without the washer and o-ring on the pilot screws, but I haven't seen them all!

Maybe this infamous carb setup does not use them???? Anyone know for sure? HELP!

Thanks!

[Cipher]

Yeah got mine from member Robert barr

[1978GS750E]

Yeah got mine from member Robert barr

So.....you know for sure that they are suppossed to be there, and are missing?

[steve murdoch]

No experience with these carbs but schematic shows just the screw.
Agree it seems odd.

https://www.ronayers.com/oemparts/a/...b03/carburetor

[1978GS750E]

No experience with these carbs but schematic shows just the screw.
Agree it seems odd.

https://www.ronayers.com/oemparts/a/...b03/carburetor

Yeah, that's my issue. Cannot find a schematic that shows the pilot screws at all! I'm tempted to just put an o-ring on them and see what it does. I cannot see where that would do any harm???
By now I'm really quick at installing and removing them! LOL

[Guest]

They should have a washer and o-ring on them.

[1978GS750E]

They should have a washer and o-ring on them.

How do you know for sure? Have you had a set of these carbs apart?

[Guest]

Yes, I've had them apart and I have several sets of them right now (I used to own an 83 GS550E). They should have washer, o-ring, and spring. If a PO messed with them, then they may have left them out.

[Guest]

Check out this schematic. I don't even see it on the American parts sites.

https://www.motorcyclespareparts.eu/en/suzuki-parts/1986-gsx550esfu-motorcycles/carburetor

[1978GS750E]

A GREAT BIG THANKS TO YOU! That's what I needed to know! Can't figure out why the US schematics leave them off???? Guess I'll have to bookmark that page!

Now to find the washers!

[Guest]

Dunno. EPA thing? Should be able to get the washers from someone's stash or that are still available for other carbs.
There's no way these washers are specific to these type of carbs. If you can't find any I'd be willing to part with a set of these carbs that I have.

[Nessism]

Robert Barr used to sell the washers...

[1978GS750E]

Robert Barr used to sell the washers...

Thanks Nessism! Don't know why I didn't think of cycleorings.com for these washers. They are ordered and will be in the mail soon I'm sure!

I can't wait to get these carbs sorted and put a "FOR SALE" sign on this bike!