I only want to know where the key ignition positive and negative wires go(just 2 wires) I have a B&S 18 HP MODEL 422707.
Thanks
Jack

I don't know about your motor, usually ground needed for motor kill on magneto system,
On coil systems, removing power will kill, no need for ground on this system.
Please no red marks, little info better than none. I have no schematic to your model?
Good Luck.