HOW TO REVERSE A SHAFT

I HAVE A TURNIGY G15, 950 KV MOTOR, AND WOULD LIKE TO MOUNT THE PROP ON THE REVERSE SIDE OF THE MOTOR. HOW DO I SLIDE THE SHAFT TO EXIT ON THE OTHER SIDE OF THIS MOTOR, AS I HAVE ALREADY REMOVED THE COLAR AND THE SINGLE SET SCREW ON THE OTHER END OF THE MOTOR ? GENTLE TAPPING ON THE SHAFT DOES NOT SEEM TO SLIDE THE SHAFT FURTHER OUT THE OTHER END. WHAT DO I NEED TO DO NEXT? THANKS, WAYNE