The back story: June 20, 2004 I bought my first new motorcycle, this DL650. I've ridden it around a bit. Chesapeake Bay to Puget Sound and many places in between. Lots of commuting. I've done all the servicing by the book, however around 55K miles, I didn't get the airbox seal back in place properly and I rode it for a service interval with it leaking in sand and dirt. Soon after it started burning oil. I was a little upset with myself..... At 63,684 miles, I hit a deer, hard. The insurance co. totaled it and I bought it back for $250. In the mean time I bought KTM 640 Adventure to ride. The suzuki got new fork tubes, lots of small pieces that broke off, my horseshoe shaped radiator was fixed by a local shop. Then it looked like this. Last summer oil consumption increased to over a quart per 1000 miles. More worrisome was an increase in engine noise and an occasional vibration and lack of power. My wife and I took a trip up the Beartooth HWY in Montana and the vibration at times was worse than the KTM. We were at some high elevations but it seemed very short on power. It was due for a valve check when we got back, so I checked and found all were still well within limits. I did notice that the cam chain tensioners looked fully extended. I took them apart. Indeed the front was all the way out and the rear has only 2 clicks left. Over the winter, I've been trying to decide what to do with it. Scrap it. Buy a used ebay motor. Overhaul it. Scrap it. I don't really need another project bike since I have this. I'm not really in a good position to buy a new bike or even a good used one right now. So I'm thinking a quick hone of the cylinders, new rings, new cam chains, touch up the valves/seats and go on my merry way. I'm an airplane mechanic and have access to lots of engine machine tools, so I can do it all myself. Anyone ever heard of cam chain issues? I searched and didn't find anything.