Just a thought Roger. Are the 4/4 looms and associated components the same as for Plus 4 year on year? I ask because no mention is made of 4/4 on loom schematics covering this period.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone