CBRs have two bolts on the ignition cover that protrude directly into oil galleries as markrd on the casing with little triangles beside them, as per the rules these need lock-wiring. Part way through 2003 they started asking us to thread lockwire or a cable-tie through the pivot bolts for the mastercylinder levers, this applied to the standard 916 levers and my Brembo Radial.