Since Yamaha does not officially release digital PDF versions of their service manuals to the public for free, there isn't a single "official" direct download link from Yamaha. #имя? Direct
However, the as the Yamaha MT-15 (Version 2.0) and the R15 v4 . Therefore, the service manual for the MT-15 or R15 is 99% applicable to the XSR 155 for all mechanical repairs, engine work, and torque specs. Jay Bank Presents Telegram Best Apr 2026