Hey all, I'm not an avid poster here, nor do I spend most of my days with a saw in my hands, but I am an Arborist...so that should count for something! Anyway - I'm looking at an MS250 that's been semi-disassembled and according to the guy it runs okay just needs a carb adjustment. It looks to be well used and an older model with an 18" bar. He wants $60 bucks for it....WHAT DO I DO?!