Honda Gx390 Wiring Diagram | Free Wiring Diagram Variety of honda gx390 wiring diagram. A wiring diagram is a simplified standard pictorial representation of an electrical circuit. It reveals the components of the circuit as simplified forms, as well as the power and also signal connections between the devices.Author: Ricardolevinsmorales[PDF] COMPONENT & CONTROL LOCATION - starter grip gently. When the engine starts, release the key, allowing it to return to the ON position. Using the electric starter for more than 5 seconds at a time will overheat the starter motor and can damage it. If the engine fails to start within 5 seconds, release the key, and wait at least 10 seconds before operating the starter again.