As the title says Fireblade 919cc 3rd gear, it's a long shot but he who knows, all my local breakers are not able to help me out, so fellow locoster's it's time to come to my rescue.

You tried blacks bike breakers at burscough?

black, berties and rivibarn.
Malc from yorkshire on the list to do next

Andy @ AB Performance?

919s are his speciality.