I did - just a couple days ago - Wethersfield Small Engine, here in CT. John there is a great guy - found all loose jets, and a tiny (primer-jet?) ball bearing that was rolling loose in carb bowl! Scott at Gordon talked him thru it, and John installed a new small o ring, new gasket, and new square pump diaphragm - after doing a thorough ultrasonic cleaning. He didnt touch any settings, so hopefully the good idle i had before will be unchanged when i use it to start the rebuilt motor next week