For most motorcycles, including the Yamaha MT-15, the manufacturer typically recommends a "running-in" or "break-in" period during the initial stages of owning the bike. This period is designed to allow the engine components to properly settle and wear in, ensuring optimal long-term performance and durability.
During the break-in period, it is generally advised to avoid excessive revving or high RPMs. The specific recommended RPM limit can vary depending on the manufacturer and model, and it's best to consult the owner's manual or contact an authorized Yamaha dealership for the most accurate and up-to-date information.
As a general guideline, it is common to keep the RPMs below 6,000 to 7,000 during the break-in period. However, please note that this information may not be accurate for the Yamaha MT-15, as I don't have the latest information on that specific model.
To ensure you have the correct information, it's always best to refer to the owner's manual provided by Yamaha or consult with an authorized Yamaha dealer or service center for the recommended RPM limits during the break-in period for the MT-15.