Your rear sprocklet is WAY off center (assuming it is round). Lossen the bolts, get the chain to tightest postion, tappy tap the sproket towards the front, repeat, re-adjust chain tension, repeat....
-I have never in my life seen a sprocket that could possibly be installed off-center.
I've never seen one that can't be. Bolt holes have some slop, slop allows motion. It's all a game of being within acceptable tolerances. Most times that motion is small ... and sometimes you get this sh*t
