SOHC.co.uk Forums > CB500/550
CB550 F2 Wiring
Neilw:
I have a quick question.
On the headlight, there is a bulb holder embedded into the side of the main light - it's called the SOCKET,MARKER LT in the parts diagram pt no 33170323003.
I can't find it on the wiring Diagrams and therefore don't know where to plug the Brown wire into. There is no corresponding Brown in the headlight bowl. I guess the light is a running light or side light of some description?
deltarider:
Identify your CB550F by frame- and enginenumber to find out which exact model it is and which 'area code' it has. Then consult the appropiate wiring diagram for your specific model, which you'll find in the addenda of the Shop Manual CB500-550.
Neilw:
--- Quote from: deltarider on September 05, 2026, 11:24:40 AM ---Identify your CB550F by frame- and enginenumber to find out which exact model it is and which 'area code' it has. Then consult the appropiate wiring diagram for your specific model, which you'll find in the addenda of the Shop Manual CB500-550.
--- End quote ---
It's a 1978 CB550 F2 Super Sport English Model - nothing on the related wiring diagram, and the headlight assembly is correct for the year and model.
deltarider:
P.192 in the Shop Manual CB500-550 shows how it's supposed to be on the UK-European type. From the socket you have two wires: one is green and can be plugged in any green connector. For the brown male there's supposed to be a brown female*. Connect and the pilot light (aka position aka city light) can be switched on either by bringing the light switch on the RH side of the handlebar in position 'P' or by turning the IGN key switch in the 'P' position (park). The brown wire also feeds the taillight.
*This brown female is also present in the wiring of the US and Canada type but ends blind, because these models don't have this light.
Bryanj:
I think it connects to a brown/white wire
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