You really have to narrow it down to either the fuel or electrical system. Either check for spark or squirt some Ether into the motor and see what happens. It may not be an electrical problem at all but if you keep pulling and bending the wires on the ballast resistor you WILL have a bad connection there. A wire could have come off the ignition coil, the coil could have failed, the impulse coil could be bad, it *could* be a lot of things.