Retract the scope and repeat! Once you’ve concluded inspecting a cylinder, unlock the probe articulation and remove the probe slowly and gradually and gently. Then execute the exact same procedure all over again until finally all of the cylinders have been inspected. Sticking valves are frequently called "morning sickness" mainly https://directory-boom.com/listings13104765/the-definitive-guide-to-industrial-borescope-inspection-camera