Model code YZ125P2L, part number LIT-11626-36-03. Those two identifiers tie this Yamaha service manual to the 2023 YZ125 and to no other year.
A manual for a current-generation race bike gets used differently from one for a restoration. Most of the work is preventive, done to an interval, and the factory book supplies both the interval and the method. When a rebuild does come round, the inspection chapters give the measurements and the limits, and the assembly chapters give the torque values in the order they should be applied.
Also here: carburation and ignition settings, suspension specifications, frame and running gear procedures, and the wiring diagram for the electrical system. Check the frame label for YZ125P2L before ordering, as each YZ125 season carries its own part number and its own numbers.
