I see this thread hasn't been added to in almost 5 years...time for an update!
It was with a heavy heart that I decided to retire my John Deere CS-40 after 17 years of faithful use...despite me not quite always doing the right thing with it as far as "long term storage". Deere stopped making parts of it 10 years ago and I think it needs a new carburetor. Bought the 440e as a replacement. I do have a question about this saw...the chain tensioner wheel does not loosen by hand out of the box and I don't want to risk breaking it off....any ideas on loosening it? I see two holes for a spanner wrench but it didn't come with one.