2025 Yamaha YZ125 Service and Repair Manual

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Yamaha's service manual for the 2025 YZ125 is part number LIT-11626-38-35, written for the machine carrying model code YZ125SL. The same book also covers the YZ125 Monster of that year, which the factory treated as the same machine for service purposes.

On a current model the manual earns its place on the schedule side first. Intervals for the top end, gearbox oil, air filter, suspension and clutch come with the procedure for each, so maintenance gets done as Yamaha specified rather than by habit. The deeper chapters handle full disassembly with inspection limits and torque tables, and the electrical section carries the wiring diagram.

Check the frame label for YZ125SL, or confirm you have a Monster, and either way this is the correct volume. Each YZ125 season has its own part number, so the check is worth making.

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