Need help with no spark

Ok, tried again today...

We scraped the paint from out from under the ground wires on the engine, tested it and got spark...

So we got it started and it ran for 8 minutes and died. I think we ran out of gas, the plastic filter showed no gas...

We put 10 gallons in and tried to restart, and we're back to no spark again.... :icon_fU: :BangHead:

We tried another ballast resistor and an orange box, and nothing....

We are still getting power to both sides of the ballast, and the positive coil post, but can't get spark...

What could do this???? :BangHead: :BangHead: :BangHead: