I recently mostly finished a restoration of a ‘75 Norton Roadster. The one issue that remains is the red ignition light on the center consol. With the key in the ignition on position the red light does not show any light, but with the bike running the light comes on. With higher reves the light is brighter, and as the RPM’s subside the light goes out. It is opposite of how it should work. A while ago it did work correctly, but I replaced some wire, and replaced the warning light control unit. Is it the unit or did I wire it backwards?