It is not advisable to cover the intake manifold pressure input of the fuel pressure regulator (FPR) on your motorcycle. The FPR relies on the intake manifold pressure to regulate the fuel pressure supplied to the engine. Here's why:
Fuel Regulation: The FPR's purpose is to maintain a consistent fuel pressure relative to the intake manifold pressure. This ensures that the correct amount of fuel is delivered to the engine based on the air intake conditions. By covering the intake manifold pressure input, you would disrupt this crucial relationship and could lead to incorrect fuel delivery, potentially causing engine performance issues.
Engine Management System: Many modern motorcycles use electronic fuel injection systems that rely on various sensors to monitor and adjust fuel delivery. The intake manifold pressure sensor is an essential component of the engine management system, providing crucial data for fuel and air mixture calculations. Disrupting this sensor's input could lead to incorrect fueling, affecting engine performance, fuel efficiency, and potentially causing engine damage.
Safety and Reliability: Modifying the fuel pressure regulator system without proper knowledge and understanding of its functioning can have unintended consequences. It is important to follow the manufacturer's guidelines and recommendations for your motorcycle's fuel system. Alterations that affect fuel delivery and engine management can compromise safety, reliability, and potentially damage the engine.
If you are experiencing specific issues with your motorcycle's fuel system or fuel pressure regulator, it is recommended to consult a qualified motorcycle mechanic or the manufacturer's technical support for guidance. They will have the expertise to diagnose and resolve any problems or concerns with the fuel system while ensuring the overall performance and safety of your motorcycle.