...like Gary said
Hello fellow Michigander and welcome to ! You live in the same town as one of our favorite members/vendor's @GlenPettit . Consider becoming a supporter http://www.wheelhorseforum.com/store/category/1-redsquare-support/ if you plan on sticking around. Pics help us help you and we just love or make a video post it to YouTube and make a link . That would really help .
You'll soon find out why there's such a following of Tractors , as most of us just can't own one . They're like Lays potato chips.
Along with what Gary said it sounds like you have some mechanical ability so that's a good start . I guess my first question would be how long did the tractor set and second did you pull the carb and give it a good cleaning ? You could try some Seafoam in the fuel system to clean it out too (I'd do both) . Next make sure the outside of carb is clean also and that the governor linkage (all linkages) moving freely and not all gummed up . If the governor isn't working right it will kill the engine when a load is placed on it .Make sure the throttle and choke shafts don't have excessive play and are sucking air . Are the fuel lines /filter needing replaced as this newer fuel eats the rubber clogging things up . Lastly how's the compression on the engine ? I'm sure someone else here will chime in soon too and get this figured out .