To discover exactly which parts you require use the on-line schematic exploded diagram - it will even give you some idea of where and how to fit those new parts.
This parts-list page (BRAKE PEDAL - CHANGE PEDAL - KICK STARTER ARM) contains the most products with thirty-four listed parts.
With these CB400N 1978 BELGIUM partsfiches you have access to one thousand one hundred eleven spares.
