How to replace the motor pinion gears on a Micro Mosquito or Firefly RC Helicopter

Replacing the two pinions on your Interactive Toy Concepts Micro Mosquito or FireFly RC Helicopter is very easy. You’ll need a flat head screwdriver with a thin tip (or other similar tool).

Your pinions will either look like this: (1st generation Micro Mosquito and Firefly)

Or your pinions will look like this: (2nd generation Micro Mosquito or Firefly)

Pinion Gear Removal Instructions:

1. Find a flat blade screwdriver with a very thin tip.
2. Gently place the flat end of the screwdriver in the space under the pinion gear
3. Slowly twist the screwdriver so the end pries the pinion upwards.
4. You should be able to pull the pinion the rest of the way off using your fingers.

Pinion Gear Installation Instructions:

1. Position the helicopter so it is directly facing you.
2. View the images above and match the pinions you have to the 2 styles
3. Match the Left and Right pinion.
4. Your pinion that looks like the left pinion in the pictures goes on the left motor (with the helicopter facing you)
5. Your pinion that looks like the right pinion in the pictures goes on the right motor (with the helicopter facing you)
6. Using your fingers, press the pinions onto the motor shafts. Press the pinions all the way down.

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