Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I use clock cleaning fluid on the brassware. I pour some into a jar (you have to dilute it) and leave the brassware to soak for a couple of hours. Once rinsed I put them into the ultrasonic bath with carb cleaning fluid from Allendale.I got the tip for clock cleaning fluid from the Repair Shop on TV and after watching an Allan Millyard video where he used it on some Z1 carbs.