I have been fighting with the carbs that were included with the '82 LS I picked up last summer. When I bought it both carbs were completely disassembled, and for the most part had been cleaned pretty well. I sorted out all of the parts, cleaned everything up, blew out all passages with high pressure air, and reassembled with new O-rings and other bits. When I put these carbs on the bike would barely run, swap my spare R100 carbs in and it ran fine. CRAP!!!
After stewing about this for several months I went down to the corner auto parts store and got a 1 gallon Berryman's Chem-Dip kit. This is basically a 1 gallon can full of cleaner and a rudimentary dipping basket. The first thing you notice after opening the can is how terrible the crap smells, this was clue number one that it was gonna work. Never found anything that smelled good that worked.
I decided to do one carb at a time so I tore the R/H carb back down, soaked for 30 minutes, rinsed, blew out passages, soaked for 30 minutes, etc. I repeated this for a total of 3 soakings. I reassembles the carbs with the rubber parts I had removed as I had installed a new rebuild kit. I had farkled up one of the idle screw O-rings and substituted one of the proper size from my Harbor Freight O-ring assortment.
After getting everything back together I finally got around to putting the carb on yesterday, fired up the bike, and it now runs just as good as it did with the spare R100 carb. One of these days I will get motivated enough to tear down and re-do the l/h carb.
Conclusion: The parts basket in the kit is the perfect size for one Bing carb and the holes in it are small enough that none of the tiny Bing bits will fall through. The solvent did an excellent job of getting everything spic and span and at least this one carb appears to work. The only down-side is that it is an extremely aggressive solvent and after 30 minutes the surface of the black plastic Bing placards felt rather "soft" Rinsing the carb body in the "green" solvent, followed by water and the plastic bits felt "normal". The can does caution about using around plastics and I imagine these things would have dissolved if I had left them in the bucket too long. This solvent may also be used multiple time which makes it's initial $27 investment a bit easier to swallow.
