It's a bit of an exercise, from memory its :
- fairing off
- remove tacho & speedo cables
- loosen nuts under the rubber cover, allowing the whole assembly to be moved
- undo screws holding on back cover, and ease the cover off
behold ! - all the entrails are revealed.
lamps are tiny wheat globes in plastic holders and they are awkward to get to. Pliers and patience needed.
Make sure you don't use an LED for the generator lamp, or battery wont charge !
While you're in there, make shiny and de-Oxit all the connectors as best you can
A good way to spend a wet afternoon...