Snowblower hadn't been run since probably Feb. of 2016. Had been lazy and didn't even touch it last winter. Finally had enough snow to make it worthwhile, but had a tough time starting. Used my usual first start routine - turn fuel petcock on, turn choke on, push primer bulb 5 times, then give cord a couple of long, slow pulls to pull some fuel in. Then tried a couple of pulls with the cord - nothing. Added some fresh (Seafoam treated) gas, tank was lower than I expected. Even after plugging the electric start in, was still a tough go to get her running, probably 5 cranks of 5+ seconds each. Finally belched out some dark smoke and was running. Ran fine as I backed off choke and cleared drive. Learned some lessons. My thought is that 2+ years for the Seafoam is too long, has never give me any indication of trouble until this instance. I'm also guessing the entire fuel system excepting the tank was bone dry, and possibly varnished - maybe even carb. Next time will definitely start and run at least once if I don't have to use it. The electric start really saved my bacon, under normal circumstances it cranks less than 2 seconds to full run, even if I've managed to flood it. For those wondering, it is a 6-7 year old Ariens Deluxe 24, with about an 11.75 ft-lb Briggs. I see the new ones are EFI.