No spark after replacing piston and rings

[pcbisnice]

Hey everyone. I recently replaced my piston and rings on a 90cc roketa Chinese ATV. It has no spark issue before. Now after putting everything back together I have no spark. I did not touch anything in the ignition system. I'm really stumped on what this could be. I'm sure I'm just overlooking something simple. Any ideas or suggestions would be greatly appreciated.

So far I have tried a different spark plug and also removed the kill switch pin from the CDI to bypass the kill switch with no change.