northerdiver

hi ive got a 600 thundercat 1997 and it wont start, once its bumbed started it runs like a dream, but getting it started is my problem, ive done the usual its been to the garage and they said they fixed the kill switch on the handle bars, work for about week then started playing up again i have a sneaky suspision that its the wire connecting the kill switch on the side stand to the starter circiut relay but cant trace the wire without seperating the whole loom anyone got any ideas on how i can test this????