wiring diagram for speedfighter 06 plate?

hi can some one help me, iv got a peugeot speedfight 2 witch has just stoped runing it turns over but there is on spark. iv changed the coil and all so the step coil to so its not that. i did get it going again. but it just stoped runing again. so plz can some one help me. also can you tell me where the immobilizer is.

macca
May 2012