Jump-starting an electric-start portable generator with a dead starting battery requires using a 12-volt booster pack or jumper cables connected to a donor vehicle, following strict safety protocols. First, locate the generator's small 12-volt starting battery, typically housed behind a protective plastic panel. Second, attach the positive (red) jumper cable clamp to the positive battery terminal on the generator, and connect the other positive red clamp to the positive terminal of the donor battery. Third, attach the negative (black) clamp to the donor battery negative terminal, and connect the final negative black clamp to a bare metal grounding point on the generator frame away from the battery. You can troubleshoot jump-starting safely by avoiding sparks near the battery terminals. You can verify that your corrective action is successful when turning the generator's ignition key or pressing the electric start button causes the starter motor to crank vigorously and start the engine.
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