Maybe Brap is a professional or maybe not but only being on the forum one day and startin this fire isnt gonna get you very far. As far as service manuals they are for procedures and helpful finding some problems but experience from all these guys here on the forum is gonna be most trusted. Example - you have a top end issue where your bike is cutting out and you check electronics and all resistance on stator and cdi and coil check out ok according to service manual specs then what, well thats where parts changing comes in you change stator and guess what more then likely problem solved. Only used that example due to experience of the exact thing happening to a shee ive worked on.