The UK fazer 2004 doesn't have a switch for the headlights. The first models 2001.. might have had a switch, but all yamaha's now have lights on all the time with no switch.

Got mine the full monty several years ago by mike and touch wood (head!)  it has ran absolutely faultlessly. I also bought another fazer 1000 with 107'000 miles recently for work, which had just the carb kit done, also by mike (Carlisle i think)and it also runs perfectly, So if anyone has any doubts about the tuning causing any issues or longevity of there bike, both my bikes are testament to ivans kit and also the brilliant work mike does. Can't recommend the man highly enough. Ps.. if anyone in Scotland wants the work done contact mike and you can come over to my place (Glasgow) to have the work done. Would be good to see mike again!