The most reasonably priced component used on the Diavel 2016 My16 (diavel Fl) D170-00016 012 - Electric Starting And Ignition is the Nut 6mm.
This schematic depicts all components used in the Diavel 2016 My16 (diavel Fl) D170-00016 012 - Electric Starting And Ignition partslist.
Some items from this specific schematic: Electric Starter Driven Gear, Screw, Spacer, Screw Tcei M6x30.