No, it is not recommended to use a copper gas line on a motorcycle. Copper is not suitable for use as a fuel line material for several reasons:
Corrosion: Copper is prone to corrosion when exposed to certain types of fuel, such as ethanol-blended gasoline commonly used today. Over time, the corrosion can weaken the copper line, leading to leaks and potential fuel system issues.
Softness: Copper is relatively soft compared to other materials commonly used for fuel lines, such as steel or nylon. This softness makes copper more susceptible to damage from vibration and movement, increasing the risk of fuel leaks.
Compatibility: Copper fuel lines are typically soldered or brazed together, requiring specialized tools and skills. Motorcycle fuel systems often require flexibility and the ability to route lines in tight spaces, which can be challenging with rigid copper lines.
Instead of copper, it is recommended to use materials specifically designed for fuel lines in motorcycles, such as steel, aluminum, or nylon. These materials offer better resistance to corrosion, higher durability, and improved flexibility for routing in the motorcycle's chassis. When working with fuel lines, it's important to follow manufacturer guidelines and ensure that the materials used are suitable for the specific application to maintain the safety and reliability of the motorcycle's fuel system.