Need help. What CDI does my ATV need?

[MakDad]

Hi guys.

[humanbeing]

God knows!!! W/o any further info...
Basics of 1 cylinder chonda family:
Horizontal (110...) https://tboltusa.com/store/tech.php?pID=134/Basic+Pit+Bike+Wiring
GY6 (150 ...) / CB (ohc) = round http://sanxin.com.cn/Exhibit/exhview.asp?pid=9 | CG (ohv) = most are square http://sanxin.com.cn/Exhibit/exhview.asp?pid=5