Motor Problem? possible solutions?

[Charlos_FPV]

So today I was testing each motor to see the temperature that each one would put out after using the betaflight motors tab method (home key =2000 throttle - 1000 end). I noticed that one of the motors was vibrating a little than the others and the pitch noise compared to the others was different. I decided to test each motor by leaving it at 2000 throttle for five seconds and touching the motor after. The motor that was vibrating was also the hottest. I checked the screws to see if they were touching the components inside the motor but they were fine.

Motor: Lumenier 2350KV

 

[mozquito1]

You should not run motors like that without props on. If not on a totally flat surface the motors try to compensate & go crazy. It's OK for a quick calibration with no props. So that maybe why one motor is hot. Get it up in the air for a minute or two. Then check em . check all bolts are tight on the motors first.

 

[GJH105775]

Try not to run them without props. They need the props to add some resistance to prevent them from going too fast and speeding apart and rely on the cooling from the props to keep them cooler.

If that motor were lower and your I gain were too high that could cause that fairly easily. Best way to test would be a flight test. My first assumption would have been the motor screws, but looks like you already checked that so next I'd check soldering and PIDs .

 

[mozquito1]

Have you changed any settings yet.
I have been flying nearly 2years & I don't really mess with them. As long as the roll & pitch are @ around 1000 degrees per second I can fly it. I will get around to pids but I'm mining data on antenna.
Specifically wide beam helicals @ the moment, so some parts are orderd.