If you have the Lucas 14 CUX Hotwire system, then you don’t fit a ballast resistor. The coil that best fits the Plus 8 is this one https://www.ebay.co.uk/itm/154433137459?epid=1229815149&hash=item23f4eeab33:g:0I4AAOSw9iNfcyEz.


Heron Grey Plus Four 2021

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Connaught Green 4/4 1988
Black Plus 8 1998