Your Chain appears normal as well as your sprockets. Some slack in the chain is required so that nothing binds, New chains have some slack and appear like yours.
I would only suggest more frequent oil Changes. Happy motoring lloyd 193.
Thank you! I hoped this answer. Yes, I plan more frequent oil change, and in general much more care, than the previous owner... I have this SW since middle of Juny, thence I done and have to do yet some greater or lesser annoying repair and maintenance, what wouldn't do after a careful owner and a careful service station: all brakes, many body plastics and screws, all liquids, all filters, crankshaft left oil seal, crankcase right side sealing, rear tyre, lost driven shaft nut, ect. And a frame welding, what I will show in another topic, because it caused by steel material fatigue, so it'd be important to examine for others, too.