Vnice, Where in the world is the dealer that you bought your DL650 from that would swap yours for another bike? That's what I call service! I also traded a KLR 650 for my DL 650 and, yes, the noises are there, gear whine, chain whine and knocky sounds. Don't be surprised if on your new 650 the noises return. My dealer replaced the entire clutch assembly on my DL to try and eliminate the idle knock and, yes, the running knock that you mentioned. After I got the bike back the noises were gone, but guess what, they came back after a few hundred miles. If I didn't know better I'd say the temper in the clutch springs went away a bit and the backlash returns, ergo, the noise returns. Another noise you may notice sooner or later is the cam chain tensioner as it moves out against the cam chain, it comes and goes. It is a clicking sound at low speed as you pull away from a stop. If you're very sensitive to this stuff and have good hearing I can almost guarantee that sooner or later you will experience some of these sounds, they are normal for this type of engine and I'll also bet this is one of the longest-lived bikes you will ever own.