If the wires are detachable you can replace them with copper core wire. You can also just replace the boot. If they are coils from a later model Honda they could have lower ohms, which give a hotter spark but also put more of a drain on the electrical system unless you also install resistors with them. I have 3-ohm coils from an early 80s VT750 on my K0 750, but I also installed a Hondaman ignition and Hondaman resistors to save the points and decrease draw on my electrical system.
Patrick
