There's no harm in trying to start it, but empty the fuel tank and part fill with Aspen, first. It's quite possible that the fuel in the carb has evaporated. At those prices, a replacement gen. carb might be easier than stripping, cleaning, and replacing diaphragms and gaskets on the original, if it actually needs any work. I use chainsaws for my local Wildlife Trust. They don't get used for at least the summer 6 months plus, are left with fuel in the tank, and start/run OK in the Autumn. I run my own saw on Aspen though. The other thought is that the chain is likely to be gummed up and stuck in the bar, because the chain oil has lost its lighter fractions. You should be able to peel the chain off the bar then give both a good clean in your favourite solvent. I'd soak the chain in oil before running it. My experience is that if the chain is gummed, the engine won't free it; the clutch will just slip. Maybe fresh chain oil too. Hope that helps. Martin