Howdy. I have a Stihl MS 250 that has been pretty reliable for the past 5 years or so. Got it out today to clear some downed trees and its having trouble starting. Its been probably 6 months since I used it. It fires up in full choke but then slowly dies out. It dies out even faster if I take it out of full choke or give it more gas. Any tips before I start tearing this thing apart?