I found the problem. After I removed the starter and could turn the armature by hand I applied power to the starter and it ran. I could get it to run then it would stop, sometimes it just sparked and drew a lot of current, then it would run. I noticed sparking coming from the commutator and brushes. The brushes are worn to the point the brush retaining screw heads are rubbing on the commutator. The commutator is worn so bad the segments are even with the mica insulators. I was going to replace the brushes until I saw how bad the commutator was worn. I guess I'll just get another starter. This was the stock 6 volt starter, am I correct in assuming the 6 volt replacement starter from YT will still work with my 12 volt system? Thanks for the replies and help.