50cc Wiring and Spark Plug

[Gerbrandt04]

Hi There,

Iam new to the site, and was having some trouble finding the answers I am looking for:
1) What type of North American Spark Plug can i use in my 50cc GIO atv? YL80Z (or YL802) I found the spark plugh guide for the YL200 but not sure if that will be too hot or not for this little atv.
2) I was not very smart and removed all the wiring connectors when I removed the plastics and now am having trouble figuring out which wire goes where. I have found a wiring diagram on this site, but the colors are different and it has a few different features that mine does not. (my wiring is original as I bought this from the original owner who has not done any work on the atv.

I would appreciate any help you can offer! I am very confused re the wiring!

Thank you
Warren