Re: chain alignment
Any time. If that tensioner gives you problems move it to the other side. I never could get mine right till i did. My chain was always coming off. Good luck most guys don't have too much problem with that.
Another thing that gave me fits was the rear wheel when I took it apart to adust (beat **** out of) the brake lever, I didn't get it right and the wheel wobbled. All in all I hate that drive system but I love the freedom of the bike.
My posts have entertainment value only. A bike ain't yours till it has your blood on it. Then it owns you.