im rewiring a 165 when i took it apart it has 4 wires coming from motor assembly. on the motor itself it only has 1 wre coming out . on the scmatic it shows two wires coming from motor feild. one of the feild wires is attached to the brush holder .is this correct? its the #3 wire thats missing outer feild. the wire coming from the motor is wound around the brush holder screw. should this be yellow #3?