I am also planning on replacing the 8AWG stock wiring on my 2013 PT190. After looking at MinnKota's recommendations for a 40 ft circuit, I'm wondering why Tracker or BassPro puts 8AWG for a 12v 55 lb motor when MinnKota recommends at least 6AWG (close to 4AWG). This is probably why the speed switch burnt out on my motor.
Does anyone have recommendatiosn on where to get cheaper copper power wire? Lowes has it for about $0.99/foot.