KI8FR: When I ran my Hommie on gas/glow...I had to have a muffler on it. Without it no Idle to speak of. Then I did a test you guys may want to try. When you idle engine down...cover the exhaust outlet with a piece of leather or use heavy leather glove. My engine then would idle to a very...very...slow rpm. I am still going to build a exhaust baffle that closes and is linked to throttle. Capt,n