How to fix a twitching motor of FPV drone 

Great stuff! Was it your first try? I'm doing the same here.. Too impatient to wait 1 month to get new motors.

@@CleverFPV my first try on a very small motor stator. Very tricky. When finished, your multimeter should not beep from continuity, if it does, do over, lol. Agreed, can’t wait for motors. BUT, must have lots of patience to wind. Lol. Good luck fellow FPV’r. 👍

Thank you for the encouraging words!

Thank you!

Hey Gabriel. I cut the old motor wires close to the motor so they became an extension. I highly recommend soldering wires to the board as little times as possible because it is relatively easy to overheat the pads on the board and rip them off. Using wire extensions your ESC will last longer. And yes, to change the motor direction you just flip any two of the motor wires. It is also possible to change the direction via ESC firmware settings, however I do not recommend doing that since the further you go from stock settings, the more confusion you will get in the future when troubleshooting things.

sure! this is a real-life scenario for troubleshooting a twitching motor issue. Going through the steps to figure out which part is faulty. In this case it was burned out motor windings. You can of course fix the motor by rewinding it (managed to do that a couple of times), however these days it makes more sense just to replace it as it takes so much time to wind that it becomes economically unprofitable.

​@@CleverFPV So you are intentionally misleading people. Let's be honest - you were just lucky to have the same one in stock. Otherwise it is quite the same effort economically to re-wire a motor then buying it on the corner. But if sy has to order it from China (sometimes months), or it is not sold anymore, it is definietly more effective to repair it (wires are quite cheap actually), then buying four new motors. So your argument is not really valid, just say you are lazy :)

Epic tutorial btw

Yeah.. Measuring things with multimeter saves a little bit of troubleshooting time :) I'm happy you found your fault!

Glad to hear you like it. Thanks for subscribing!! :)

Wow man! Did you just invent a free energy device? Do the propellers go even when the battery is disconnected? :)

Thank you very much!!

Well. Yes and no. There are many reasons why motor can be twitching, i.e. broken ESC, broken wire connection, stuck rotor due to dirt and/or mechanical deformation of the bell or even settings of ESC. This video shows how to find the fault without taking the quad apart 🙃

Very good tip!

i think this is my case, is there any way to fix this without having to buy a new motor?

@@Bullitain first MAKE SURE it’s the motor..and if u do have to replace it.. consider yourself lucky. A motor is a lot cheaper than a esc!

@@robaxelsson530 it was the motor and i've replaced it now. Is all back to normal now 😊

If you measure with multimeter as per this tutorial, are the values correct? If so, did you change any of the ESC settings? It could be that you have lowered the motor startup current. Also, maybe there is a mechanical obstacle somewhere when you put the propeller on? Maybe the motor wires have some intermittent connection issues - electrical connection is lost when putting the propeller on (for example you put a finger on wires and bend them to a position where the connection is lost) ?

Thank you the most!

Sorry to hear that bro :(