I have 3 pieces of equipment that are very new and am looking for the exact way to winterize them. My Billy Goat blower is an 11 horsepower briggs and stratton (Regular Fuel). I just ran the fuel out of it but will whatever fuel that may be left inside the tank for the next 4 months or more do any damage? Should I run some fuel stabilizer into the carb?? Same thing with the other two cycle pieces my lesco weedwhip and husqvarna backpack blower? I ran the fuel out but there may still be some residue in the tanks and carbureators. Please help me get this right!