I fill up my machines with fuel and start them up at least once a month. The 2 cycles, I dump the fuel out and let them run until they quit. You can add Stabilizer to the gas, but I never do. This is how I have winterized my old DC since it was new. I have had zero carb problems, so I guess it must work ok. If you leave fuel in them, fill them to the brim so the moisture doesn't form in the tanks.
We always fill up the gas tanks completely and run them every couple of weeks throughout the winter. The two cycle stuff we just drain and run dry. I am afraid to us stabil for fear of gumming up the carbs with letting them sit.
i used fuel stabilizer on my craftsman mixed it in the tank and with my gas i put to much in i just had to get carb work done my mechanic said not use it anymore he said i wore out the f---ing primer trying to start my mower this week .but i think its ok it work ok on my blowers and trimmers. the smoke kills your lungs but its starts up on all my 2cycles first pull or at least the second
Our whether gets real cold up here in Maine along with you other northerners. All our Walkers, Toro's and all trimmers, blowers, power brooms and edgers all get 1/2 tanks with stable mixed in and dont run em till spring. Re-charge battery and fire em up.
I've done it both ways, drained the tanks and filled them full. Seems in my climate filling them up and starting the mowers once a month works best. All 2 cycle engines are drained out and run until they quit.