I have done a valve adjustment on my 50 cc Pantere Fusion moped, and in the process my ground wire to my moped came completely off. I don't know if that's my problem or not though. I adjusted the valves on my moped to .003. That's what my local moped shop (Lesslie Motorsports) told me to set it at.
I tried to ground the one negative ground wire to the frame and hooked it to the battery. It cranks just fine if it's on the kick stand and I'm sitting on it. But as soon as I take it off the kick stand it cuts off. The thing is it won't even turn over if it's not up in the kick stand and I have to be sitting on it.