Am a newby so be patient. When doing breather hose mod on my new-to-me 06 Uly I found that I don't have a mechanical cable on the sensor on top of the airbox. Bike runs, not really great but thats why I'm doing some mods. My question is should I have this cable, what is it, is it necessary? In this picture my bike does not have the mechanical cable but everthing else