Sky runner rc helicopter lower blade doesn't work

SOURCE: my rc helicopter can not fly it spin in floor

Hi
This type of helicopter uses a fixed pitch blade. Have you recently replaced one or all the blades? If the blades are correctly positioned then once the motor comes to speed, the pitch of the blade creates enough lift to overcome the force of gravity. The problem you're having can only be that the motor is not coming to speed or the blades have been replaced but the pitch is now at the wrong angle.

SOURCE: find charger for world tech rc helicopter skyhawk

good day,
hope this link below will help tp solve your problem.

toys

SOURCE: I have Brookstones silver bullet

Sometimes the metal weights fall out of the top rotating bar causing the blades to be out of balance and the bottom blade to hit the tail. Check to see if both the weights are in the top bar.

SOURCE: My Air Hogs Hawk Eye helicopter's lower rotor

Okey, this is a trickie one, now inside the lower rotor shaft the white plastic gear goes up in to the larger shaft and has like a simi circle on top, ( i know im not discribing it well but trust me the little "tooth" most likely has broke and it randomly binds up in side the shaft, had the same thing happen to mine, i fixed it by dissembling the rotor assembly and removing the broke "tooth" and putting a drop of crazy glue on the ******!!!!!! worked for me