I've heard of gaskets drying up if you run the gas completly out of the carbs? Not sure how accurate that is? But I guess I could see where it might occur? We do the same and run marine antifreeze through the motor to make sure there is no water at all in it, so it doesn't freeze and crack anything if being left outside. Oh Yeah Did I mention we Have 2 INCHES OF WHITE CRAP on the lawn outside???????? October 13th and Snow??????? Yup It's gonna be a Longggggggg winter Ughhhhhhhhhh Take Care God Bless LOL Dave