Originally posted by RC Paperboy
Check if the mounting screws are rubbing at all, that could be it.
Ryan had a magnet come loose, you could ask him about it. I think he sent it back to reedy.
The mounting screws are one of the biggest overlooked things here, good call on that one Paperboy! I have had the same problem in the past, the screws I used for my stock motors would be too long for my mod motors, and hit against the armature wires, that's a really good thing to check out.