Thanks for the reply Allthunbs.
I bought this M12V used and have not put a lot of time on it so I don't have long term experience with this router. It is strong and worked well in my table. I only spent a couple of dollars building my lift but it is welded onto the plunge frame therefore my reluctance to change it out. I never used the variable speed control although I probably should have if I was knowledgable enough to know how. I will completely disassemble the stata and inspect the armature to check for the issues you memtioned although it does not have any "burned motor" smell. I don't have a local repair depot so I will probably tinker a little more and then go find someone to fix it.