https://www.manualslib.com/manual/911826/Stihl-025.html
This manual provides detailed instructions on how to repair, maintain, and troubleshoot your chainsaw. It includes information on the following:
* Safety instructions
* Troubleshooting
* Disassembly and assembly
* Maintenance
* Adjustments
* Repairs
Please note that this manual is for informational purposes only and should not be used as a substitute for professional advice. If you are unsure about how to perform any of the tasks described in the manual, please contact a qualified technician.