I'm currently trying to do the wiring on a 1960s James, my least favourite part of any restoration!! One of the wires goes from Yellow to Transparent and in between the two, the wire is marked 'Resistance'. What is Resistance? This is the newest thing I've ever rewired and I've no idea what it's for. Sorry to be so 'off-topic', but I know someone out there will know what it's all about and will help me get the job done.
On my Flea and ML the resistor for the direct lighting system is a copper wire coil near the switch. As Dave and Roger say, it must be built into the cable on yours. Ron
Thanks for all the replies chaps. It should go from the light switch to the bikes earth and at least now I've got some idea what it may be all about. Has anyone got any idea where I'd find such a thing as a resistor wire? I hesitate to say what it is I'm working on as it's a bit embarrassing and very off-topic, it's a 1961 James SC1 Scooter, please don't throw me off the WD forum, it's not mine, it's the wife's, honest Gov!