Thanks for reply mate, The wires all look pretty good and tidy. The bike has been looked after by the look of it but it is hard to say what they look like inside the actual harness.. my bike the 2004 has a maxi fuse is that what you mean by main circuit breaker?
This is what the circuit breakers on older models look like, little tin boxes clipped to the back mudguard behind the oil tank.
You can be a picky bugger Beags, But I'll take another pic with more light. If you squint, can you see a couple of tin boxes on the mudguard in the first pic? A red wire goes to one of them.