Took it back off before i had to go to work. If the crank sprocket is against the crank the chain isn't tight chain at slight angle. When i slide the sprocket out the chain aligns and is somewhat tight. Is the crank sprocket supposed to be seated against the crank? I noticed markings on the crank key for adjustment. Also the sprocket has lots off free play, so I'm going to try to pry the key up so the sprocket will be snug. When i took the old crank sprocket off it slide off with ease so that's another concern. Any advice on this would be very helpful : )