Basically it's for ZDZ engines and goes like this.

Ignition off, full throttle, closed choke...flip it five times
Ignition off, full throttle, open choke...flip it five times
Ignition on, close throttle to idle, open choke...flip it once and it's running....sometimes twice if you slip off the prop

All flips must be good ones, if you slip off the prop, do not count that flip....works every times unless there is a carb or ignition problem