You should also check to see that other parts of your fuel system aren't gummed up..tank,line,petcock. Did you drain the fuel or use stabil before you put it up for the winter? I would say to clean the carb as well. I'm not familiar with brake cleaner, I usually use carb cleaner. I remove the carb from the machine and take out the slide, jets, needle, floats, choke, etc and clean every passage and orifice in the carb and put it back together. Make sure you take note of the position of your air mixture screw BEFORE you take it apart. While you've got it apart you might want to spend $2-3 on an inline fuel filter, they are worth every penny because they hlep to prevent a dirty carb and worn engine.