I need to wire a standard generator so it's switchable between 110v and 230v, as it's only wired for 110v at the moment. So does anyone know where I can find a wiring diagram? It's just a normal 5.5HP Honda generator with a 2.2kva alternator, commonly found on building sites in the UK. Cheers. 
  If more info is needed, I have another question with more detail here; 
  Read more: Where can I find a wiring diagram for a 2.2kva generator?