Scooterotica

I've got a loom from SR to put electronic ignition in a S2 . The pink and grey with spades are for the horn I guess but what's the brown with bullet head at about the same position on the loom ?

Possibly the horn positive side.

I got it wrong , the pink and white are provision for a front brake light switch and the brown is for the horn along with another wire to come direct from the switch

In that case its deffinitely the horn main feed,the white wire coming from the handlbar switch is the other wire.