Many carburetors on the market today use needle valves. The needle jet is actually a long, thin rod that is tapered at the bottom, placed in the inlet side of the main jets. This rod responds to the movement of the throttle. As it is lifted out of the main jet, more fuel is allowed to flow in; conversely, as it is dropped in the jet, the fuel flow lessens.
A coupling (or coupler)—the term is often used in piping or plumbing, is a short-length of tube with socket at either or both ends which makes it possible to join pipes or tubes through welding, brazing or soldering. A coupling is very important for pipe connections in various industrial applications, especially in industrial setups. It … Read more