Can I change the ownership of a purchased bike to my name while on a tourist visa in Thailand?

The process of changing the ownership of a motorcycle purchased in Thailand while on a tourist visa is indeed possible but requires specific documentation. You will need a certificate of residency from your embassy or Thai immigration, proof of address, transfer agreement, the vehicle book, your passport, and payment. It might be easier to have the motorcycle transferred to a local partner's name if you're unable to gather these documents, although this comes with its own risks. Consulting a local motorcycle shop could simplify the process, as they are familiar with the necessary paperwork.