Join Date: Mar 2014
Location: Lowell area, MA
I try to clean heavy junk off the outside first, if possible. Then I disassemble it as much as I can easily.
For a float carb, the bowl comes out, jet & emulsion tube comes out, etc. For something like a diaphragm carb (chainsaw), I take off the plates at both ends, remove the diaphragms and things that will come out easily.
I have not removed Welch plugs, nor have I done mechanical cleaning, like running a wire through the jet. Admittedly, that would be important if there was a piece of grit/rubber stuck in it.
Then I heat & degas the solution, and clean them using Simple Green HD. I usually give them an hour, since I'm rarely in a rush. If I'm concerned, I may flip the carb over halfway though, or give it another whole cycle that way. I figure too much beats too little, at least within reason.
Ariens 1024 Pro
Toro Power Clear 221QR
Toro Power Curve 1800