I have a Toro Ecycler. Unfortunately the wires pulled out of the plug that attaches to the mower. I can measure the polarity of the wires with a multimeter but I am not sure which side of the plug the positive wire goes in to. The plug has a specific orientation when plugged in so I assume there is a proper place for the positive and the negative. Do I have to dissemble the mower and trace the wires from the input plug or is there some rule of thumb for plus and minus or some way to tease it out. I tried sticking the multimeter probes into the female plug on the mower but do not get any reading unless I am not doing it properly. Thanks for any advice!