Honda CG125 ES4 Ignition Coil

[rpsmith79]

This seems to be much more complicated than it should be

Trying to find a replacement Ignition Coil for my CG125, and every time i try they all seem to arrive differently to what i have installed on the bike

On mine, i have the coil, with the single spark plug lead, and one other wire (in this case Black/Yellow), and one of the mounting screws to hold on the coil has an grounding wire to it (green in this case)

When ever i buy a coil it has 2 connection rather than one, but no of them come with any wiring diagram to let me know which is which (ground or power)

Is there any way to tell which is which, and what sort of damage could i do if i wired them up back to front
____________________
Current Bike: Honda CG125 ES4 // Honda CB600FS Hornet // Triumph Street Triple R