The JFS (Jet Fuel Starter) on an F-16 allows for two attempts to start the engine.
However, if this fails, there is a manual pump that can be operated:
Where is this pump? Inside the cockpit? Hidden in some hatch outside? How is it operated? How long does it take to build up enough pressure for one more attempt to start the engine?
As a bonus question: Surely the JFS system can be charged with external equipment rather than this hand pump? What is that procedure called?