Feel like a real novice here. Have a 2003 WR450. Replaced the brushes in my starter. I thought I put it back to gather the way I took it apart. After reinstalling the starter, it won't engage the drive gear. Removed the drive gear cover, and found the started was spining in the wrong direction I know if you reverse the polarity, you can reverse the direction of the motor. I checked the leads from the starter relay, they appear to be correct. Any idea what I did wrong. Any help is greatly appreaciated.