I think I should point out to everyone reading about yaw motor replacement and where to get them. I do buy on eBay and Aliexpress. I buy 10 or more at a time and I have to inspect each one. It is my opinion that most of these are DJI rejects. There are 2 things I watch for. One is the windings being loose. If you take the casing off and try to move the windings while holding the base and there is any movement you must glue it. I use superglue at the point where it moves. If you don't do this, when it starts up the jerk is enough to break the windings off where the solder point is and now it is trash.
The other problem is when you put the casing on from your old yaw motor it is sloppy. Up and down movement of the casing is no good. I add a tiny washer to take up the space.
The last issue I want to discuss is when you replace the old yaw motor and don't use the original casing. Sometimes everything works out and it points straight ahead. You were very lucky! The yaw casings have magnets in them that are somewhat random. That means the Hall sensors and the ESC that controls it will not allow it to point straight ahead. If you lost the old casing or it was damaged you have a problem. There is a solution but you need to get a hold of a bunch of old casings and check to see where the magnets are. I use a compass to do this and have a YouTube video to show you how to do it. From my experience there are about 5 different locations so you need about 5. The problem is unless you have a drone repair shop, there is no place to get them. I can help with is but you need to do the testing with a compass. I would be glad to walk anyone through this procedure.
this post is way too long and I need more coffee.
The other problem is when you put the casing on from your old yaw motor it is sloppy. Up and down movement of the casing is no good. I add a tiny washer to take up the space.
The last issue I want to discuss is when you replace the old yaw motor and don't use the original casing. Sometimes everything works out and it points straight ahead. You were very lucky! The yaw casings have magnets in them that are somewhat random. That means the Hall sensors and the ESC that controls it will not allow it to point straight ahead. If you lost the old casing or it was damaged you have a problem. There is a solution but you need to get a hold of a bunch of old casings and check to see where the magnets are. I use a compass to do this and have a YouTube video to show you how to do it. From my experience there are about 5 different locations so you need about 5. The problem is unless you have a drone repair shop, there is no place to get them. I can help with is but you need to do the testing with a compass. I would be glad to walk anyone through this procedure.
this post is way too long and I need more coffee.
Last edited:
Good stuff, Ted.
