Hello all, i know this could get ugly but i have to share this with everyone !!!!! i've got alot of help on this site so i would like to return a little something,,,, I always run my engine dry and add after run oil, all kinds of oils !!!! they always rust after a year or so, some in the basements, some in my bedroom, it does not matter,,,,,, my brother never did this, he just does not care, well his way is far better than mine, his engines always stay smooth,,,, i ran a couple of engines last year that i left full of fuel, it was cold and i was having trouble with them, i just pulled them from a box and they are sweet and smooth,,,, better than any of the ones i ran dry,,,,, i remember someone saying you end up with alot of HALF BURNED FUEL, that starts all the problems!!!! i will always do this, i know alot of you are saying this guy is nuts, well i'm in shock how nice the engines are and i just wanted to share this with you guys,,,,, flyby50....