How to fix an out of alignment gear of Micro Mosquito Firefly

Learn how to fix an out of alignment gear of Micro Mosquito Firefly RC vehicle. A very common occurrence when an impact like dropping onto the floor, the upper large spur gear has been popped out of place or alignment - customer will experience only one rotor will spin. And all you need to do is to re-align and make the spur gear line up with the left motor (direction is looking into the eyes).