It's not a big problem cleaning up the carb... I think you have a Briggs engine... Go to this link...
Small Engine Equipment Troubleshooting, Repairs and Safety ... scroll down in the Briggs & Stratton group till you see your carb.. follow the disassembly instructions..
If there was any fuel left standing in the carb from last season, it will most likely need cleaning before it will run... :smile:KennyV