Welcome to the site !!
Unfortunately , the only way you are going to get the wiring diagram for that bike is to have a Factory Service Manual , as the owners Manuals do not come with them ....... What you could do is go to your local Honda dealer and ask them to print you off the page for the diagram ..... they need to know the year and they should be able to help you , it should not cost you anything for them to print the page ... I was hoping Ray was going to chime in as he is the resident 230 guy .... he might have a diagram to reference ....