the headlights run off the generator so they will not work until its running ,the brake lights are either not working because the bulb is blown or the brake light switches are faulty(very common) theys always go wrong as the cheap little screw in ones.the spark problem will no doubt be a problem witht the cdi/immobiliser they have fitted as standard,get a replacement one with no built in immobilser from electrex world they have a web site and are alot cheaper then a new genuine one and alot less hassle too.
adam bike doctor
March 2009