US Patent 7096839 Ground structure for a vehicle

A ground cable between an engine and a body frame has an advantage against vibrations and for increasing the universality in use and further improve the flexibility in coupling to a vehicle body. An engine case and a vehicle body frame are connected to each other by a cable to ground the engine. The cable has a diameter set substantially equal to one of the other cables that has the greatest wire diameter wiring lines, that is, a wiring line cable between a battery and the engine and wiring line cables and between the battery and a starter motor.