Just got two puchs, a newport II 2HP and a maxi Luxe 2HP, both 1981.
The running lights and brake lights on the newport don't work.
The running light on the maxi luxe dosn't work either.
I played mix and match with bulbs, and all of them owrk, (I teste on the functioning maxi brake light)
I followed the wires, and they all seem intact, I reconnected at the junction box, and checked for shorts, nothing...
I guess I shold pick up a multimeter, and test test the grey line? or all of them for that matter? If I do this what SHOULD I get as a result?