It cranks OK tho with the key? So are you saying you got no spark? If that's right then check the ballast resistor. Since you have the jumper wire, just jump across the two terminals. If you have a dual ballast resistor, just jumper all four wires together. Still no spark and electronic ignition, clean the case ground and firewall at the ECU.
If a points system, there are other tests.
But if it doesn't crank with the key, you'll have to check the Fusible-link.
