I am bringing back to life a few cheap Ebay acquired glow engines. New bearings, free up the seized barrels that lazy slobs put away with no after run oil. Changed out a few hi speed needles and O rings. Boca has the bearings, youtube had the instructions and Stan at S&W Fuels in Easton, Pa. makes the best fuel around. Get your ball drivers out, grab a hair dryer, some denatured alcohol and get to work. I ran one of them on my test stand recently, an Evo 52. MAS 11-6 cranked out close to 12.5k, nice clean exhaust residue. Just waiting for spring and summer!