GY6 Not charging or starting?

[flexo6]

I turn key on and back brake light comes on. I changed stator and voltage regulator. When it was running it was not charging battery enough. I did test on wiring to and from voltage regulator and it seemed fine...anyone have any other ideas? If you say a bad ground....where and how many ground points are there to check?...I appreciate anyones help! TY!

[Roscoe]

What I'd do. .... A picture is worth a thousand words and a video worth a million words. Youtube is your friend. I'm not avoiding the problem it's just that there are many good videos addressing this problem on Youtube and they explain how to trouble shoot and fix the charging system very well. Here's one to start with, how to test starts at around 6 minutes. https://www.youtube.com/watch?v=e2fL5DOSK-w Be sure to check the fuse by the battery. Let us know what you find and what you did to fix it.