What describes a hung start in engine terminology?

In engine terminology, a hung start refers to a condition where the engine does not reach the expected RPM after ignition. Instead, the RPM remains low for an extended period. This is indicative of an issue within the starting process, which could be due to various factors, such as insufficient fuel flow, ignition problems, or mechanical constraints.

During a normal engine start, once the engine is ignited, it is expected to smoothly increase in RPM, but in the case of a hung start, the engine fails to respond adequately, reflecting a deviation from the norm. Understanding this concept is crucial for troubleshooting engine issues, as recognizing the symptoms of a hung start allows for timely intervention to rectify problems that could lead to more severe engine performance issues.