If you do the boiling water thing add a little dish soap. like Dawn ultra. it rips grease off dishes. make sure that you clean out the gas system
really good. too. you don't want any oil or grease in there. collects powder residue . - carbon build up will happen faster. and dry the crap out of it with a hair dryer. don't do it in the kitchen sink either. outside where your neighbor's can't see you or the wash basin and then do a load of laundry after to flush the system out. make sure you don't put grease down your drain . then a light coating of oil on the outside of everything. except the gas pistons.