The ground is good. The Neutral and Reverse lights do not work but not too sure if the wiring is hooked up to it correctly, the quad i bought had been rewired. .No handlebar switch,no key,no light switch. I have been buying all the stock parts off ebay to get it back to normal. I will attempt to get it back to normal once all parts have arrived. But the quad has been running fine in reverse until couple days ago. I will try and check all wires, something probably wiggled loose.