Can't find carb rebuild kit for my year?

[Guest]

I have a 1984 GS550ES, and I've looked through google and ebay trying to find a rebuild kit for my carburetors, but every result that comes up is showing me kits for different years or different models. There are a few universal kits that come up, but I would be hesitant to get those. Does anyone know where I can find a carb rebuild kit for my year/model?

[Cipher]

I have never found one either. I don,t think they exist. You cant get emulsion tubes or jet needls anymore from OEM.

[OldVet66]

With all of the GS series I have never seen rebuild kits recommended. Generally there are not many parts that need to be replaced besides O-rings and float gaskets. All the other parts should be easy to clean with a 24 hour soak in carburetor cleaner. There are parts still available for the carburetors. I would recommend getting in touch with Robert Barr at (http://www.cycleorings.com/) to see if he has the necessary O-rings. You should be able to get float bowl gaskets at a Suzuki dealer.

[Neebs]

Thank you both for the info. I thought I was going crazy when I couldn't find anything.

[Nessism]

"rebuild kit" = questionable aftermarket parts

Replace the soft parts like O-rings and gaskets and reuse all the original brass jets and such unless damaged.

And be sure to fully ungang the carbs and clean everything properly. Short cut and you will wind up having to do the carbs again.

[Steve]

Yep, use a kit from cycleorings.com and do it yourself, or send the carbs to one of the members here that will do them for you. As mentioned in your electrical thread, doing the carbs is not hard, but does require some attention to detail, some basic tools and some chemicals.


.

[Neebs]

Wow, so one of the pilot jets and one of the main jets were chewed up pretty bad. I feel like I got lucky getting the pilot jet out. The main jet I used a pair of pliers to grip and turn. I also found out after the fact that the two main jets in each carb are different sizes. I think I put them back in the right spots, but do you guys know how I figure out which one goes where? And if I order replacement jets, is one company better than another?

[Cipher]

larger mains are for the inboard cylinders

[Neebs]

larger mains are for the inboard cylinders

Sorry for being a newb, but which ones are the inboard cylinders?

[steveb922]

Numbers 2 and 3. Number 1 is on the left, under your clutch hand, 4 on the right, under the throttle.

[Steve]

larger mains are for the inboard cylinders

Sorry for being a newb, but which ones are the inboard cylinders?

I think if you had also heard the term for the other cyinders, "outboard cylinders", you might have figured that out.

And if I order replacement jets, is one company better than another?

No doubt here, get Mikuni jets for your Mikuni carbs.
One good source is Jets R Us. (<-- click link)

If you have stock intake and exhaust, stock sizes are 95 for the outer cylinders and 102.5 for the inner ones.

.

[748cc]

Well, now I'VE learned something...inboard vs. outboard jettings vary. Hmmm...is this due to operating temps & trying to get the inboard cylinders cooler? sorry for hi-jacking, but I just gotta know!

[Steve]

I think that was an attempt to cool the inner cylinders, and it was only on the 16-valve 550s ('83 and up) and the 1150.

.

[Cipher]

oTHER BIKES USE IT AS WELL SOME hONDAS IIRC

[steveb922]

Suzuki first used it on the two-stroke air-cooled triples. The larger main (and the ram-air cover) were supposed to help cool the middle cylinder. They weren't entirely successful......