Daniel,
I have been researching CX500 Carby repair kits recently, I believe "Motorcycle Spares Warehoouse'' online sells kits and individual parts.
Considering you did not specify a CX model, you will have to check that warehouse yourself, else please report your CX model and Carb model here to recieve more accurate info.
P.S. you could check
http://www.cmsnl.com for your model CX then Note the part numbers then search the WEB.
that is how I find my parts, when I cannot find info elsewhere.
guru71762