Hi just bought me a used bike with a china girl motor on it.

[Big Red]

Welcome to M.B.c. I was trying to see how the front mount was done but the pic is a little dark. I HOPE it's not the "drill a hole in the frame" big mount kit. If it is the first thing to do is replace the frame. This will weaken even a steel frame and probably crack sooner or later. The LAST thing you need is a cracked frame at 35mph. Safety first bro. You could also have it welded up then mount the engine properly. That is only if it is a "drill the frame" kit. I hope I'm wrong.
Big Red.

 

[Greg58]

I don't know if you have found out what engine you have but it looks like a gt2 grubee with a bgf carb. The head design is like my gt2b except mine has the angle plug design.
https://motoredbikes.com/media/0528010747-1.44630/