I had trouble with a MK this summer. I took it to a local MK factory service center. He said it would cost more to repair than the motor was worth. Completely understandable to me. However, my fishing buddy asked if he could look at it. At a cost of less than $10 he repaired the motor. He is a retired shop foreman of an armature company. An electric motor is an electric motor....according to him. I believe him!