On which side of the motorcycle is the fuel supply valve typically located?

The fuel supply valve is typically located on the left side of the motorcycle. This positioning offers both practicality and safety for the rider. The left side is easily accessible for the rider when they are seated on the bike, allowing for quick adjustments or fuel shut-off as necessary. This design also helps keep the rider's leg free from potential hazards, such as hot engine parts typically located on the right side. Furthermore, having the valve on the left side aligns with standard routing for fuel lines and simplifies the overall layout of the motorcycle.

Other placement options, such as under the seat or near the rear footpeg, could complicate access or be impractical for regular use, thus making the left side the optimal location for the fuel supply valve.