I know- it's dangerous to do but sometimes necesarry. As you all know, I'm currently packin' a 42cc Craftsman. It seems to be getting old and I was thinking of a 46cc Poulan but what I've cound is that they have a 20" bar. I'd like to stay with the 18" and also wonder can I take the chain/ bar with me from the Craftsman to the Poulan? Thanks..................