Parts such as the Handle Switch & Lever: Holder,lever Under 1, Nut,1, Screw,lever Holder Fitting 1, Bolt,lever are included in the Dt50r 2005 2c29 Switzerland 1d2c2-361e4 Handle Switch & Lever parts fiche.
In this schematic the "Screw,lever Holder Fitting 1" is used most often.
The Yamaha HANDLE SWITCH & LEVER has twelve products enlisted in the schematic.