TB has sat for about 4 years

I have a 2002 TB. It was last rode in 2011 and I am trying to get it going again. Right now it wont start easily, it wont idle, and I have to mess with the choke to make it go fast or slow(depending on which I want to do). I have ordered a carb rebuild kit and a new gas valve(the one that turns the gas on off or to reserve). I am just wondering if any of you know what else might cause it to run crappy. TYIA