FYI - I chatted with QuietCarpenter86 and we determined the clutch basket bearing is seized disabling the ability to disconnect the engine from the drivetrain. Replacement part linked if anybody wants to upgrade to the sealed bearing design. https://www.amazon.com/Mingdun-2-Stroke-Bicycle-Motorized-Engine/dp/B0924FD2QF/ref=mp_s_a_1_1_pp?crid=3HL5T05VUGPDX&dib=eyJ2IjoiMSJ9.DHNDtl8p5wtL5vJygsUX1bZimNreZZEoofo7UKx6GRvKHRBh-fYzhzZm1S2TeVP6t-4x5cEvyZzQIXt-njzSgViI4b_VtW1wTUZlJsuDdLwXJJFPgSKHzesmmockTYEr-qIc-C6duvRqZesjQeZVFeAea7hBJu6Vmcl9lzE-9a2Mo8ovoXUdf0hSsn44tAQV6RLGNgWj4GdwUXbE0ax53w.ZP3MBoCTzEvPSBdvJY9MbHv_VuTPfs_FzoksQGkvpvw&dib_tag=se&keywords=motorized+bike+clutch&qid=1777237250&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sprefix=motorized+bike+clutch%2Caps%2C475&sr=8-1
