Throwing a whole rack of carbs in a boiling pot of Simple Green, rinsing them off with water, re-installing on your bike and expecting them to work, is not going to happen.
No matter what cleaner you prefer to use, all the ports, passages, jets, etc. need blown out. Using either carb cleaner and/or compressed air. Otherwise you've dissolved the gunk with the simple green, but the gunk is still sitting in your carb, until its blown out.
New gaskets and o-rings are also to be used. *obviously*
Hoping newbies don't read this thread and assume you can dunk a whole rack in some Simple Green and gunked up carbs are magically transformed!!