Hello "badlybehaved", and welcome.

Can you identify which MC18 you have?

The MC18 Mk1 is designated R2J (R4J for an SP) and uses a PGM-CDI ignition. It is most easily identifiable by low silencers and a plain swingarm.

The MC18 Mk2 is desiganted R5K and R6K and uses a PGM-II ignition unit. The Mk2 is usually easily identifiable by high swept silencers mounted on chromed stingers, and a swingarm patterned like the frame, and with a torque-arm from the rear caliper to the back of the frame.

The Bk/R on the MC18 (all models) is the 12V feed to the light/multi-function switch on the left handlebar, and will be live when the IGN switch is in the ON position, regardless of the setting of the kill switch.
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Andy.
NSR-WORLD.COM

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