Sorry if this has been posted before, but I have been reading on here about my "track jumping" issue. After hours of reading I beleive it may be the chain in the chain case. Unfortuneately my sled is at my cabin 150 miles north of here, so I can't check it till this weekend. I was wondering if the chain is adjustable or how to check for wear. Also a link to a how to for replacing the chain and gear if necessary. I'm sorry for the long post, I'm just trying to get all my stuff together for this weekend to try to get it corrected (planning ahead because I have no heated place to work on it up there:thumbsdown Thanks in advance.