How do you change the rear tire on a Huskee Riding Mower?

Hi,
Kind of puzzled where to start. First you must remove the wheel form the axle. Hubcap, E-clip, washers may all be present, E-clip secures it so it must be remove and washers positions must be noted as some must go back exactly where they came from. Wheel should slip off axle; be sure to locate the key that locks the wheel and axle together, 5/32" square x 2" long. You need to remove the valve stem core from the valve stem. Next you must break the beads loose from the rim on both sides by driving them inward. You can use a pair of decent size screwdrivers to ease the bead over the rim on one side. Note: the inner-most portion of the wheel of the wheel will be of a reduced diameter to facilitate tire removal and installation. The bead of the side you are working on must be in this reduced area to get the bead over the edge. You simply slowly work your way around. It is far easier to be shown, though that still leads to little fun.
Most well equipped shops have a tire changer and it is well worth dropping it off in the morning and picking it up in the afternoon and paying the charge; I think the average is about $8. That still involves you taking off the wheel and tire as an assembly and taking only it to them. A good shop will probably also charge you for a new valve stem, a wise investment!
When it is ready to go back together, put on the inside washer(s) first, then the wheel/tire. Spin it on the axle until the groove in the wheel lines up with the groove in the axle and slide in the key. Add the outside washer(s), e-clip and hubcap.
Peace,
Clarke

If these wheels (especially the rear ones) have not been removed for a long time they will likely be rusted to the axle. If so, it may be virtually impossible to remove them. The best bet if that is the case would be to replace the tire or add an innertube with the wheel still on by breaking the inner and inner beads, pry the outer bead over rim and putting an innertube inside the tire and reseating the rim over the tire. This is a common problem with rider mowers. Too bad someone doesn't maks a rider with a hub on the axle such as the ones on a car that the wheel would then be bolted to. Guess it adds too much expense.