Official assembly steps: two people should perform assembly/disassembly; ensure the system is off before starting; fully rotate the steering column in the arrow direction until it stops, then close the folding lock to secure the column; insert the handlebar into the steering column; secure with the provided 3mm hex wrench and screws; after assembly, verify the power switch works correctly. Warning given: check screws and folding handles are tight before every ride.
Fuente oficial: https://cdn.shopify.com/s/files/1/0907/2820/2544/files/Y1000__compressed_1.pdf?v=1778481260 (tier A). Traducción/paráfrasis fiel del manual oficial; no se ha añadido ningún procedimiento no documentado.