hows it going? i own the 2006 zong sierra and it has been a pretty good bike all of my problems have been electrical. probable from the bike setting so long at the dealer before i purchased it.
that being said i hope you will be happy with it. from my experience i would say dont over tighten seat bolts the plastic that they are mounted in is very soft and will work loose if to tight. my headlight was aimed to low so i hd to shim the bracket to get it where i wanted it. mine also came with a 25w headlight bulb but you can get a 35w that works better. the chains stretch pretty quick so you will have to stay on top of thatalso.
anyways enjoy it shawn