Not sure about that but you have a new unit on the way so that's good. May I also mention that several XL'ers on here have had the insight to make a point of polishing their cam chain tensioner pivot pins with fine sandpaper. It gets rid of the polished spots on it and lets it grab again like it should. I advise it. I might have that old froze-ass timing chain around from the XR600 engine I got for parts, give me a couple days to dig around for it...
1983 Toyota pickup: total overhaul, preservation-restoration in constant progress...
1987 Yamaha XT600 2KF (German)
STOLEN: RED XL600 in Portland
I do heavy-duty textile repair, upholstery, and design/manufacture bags.