2025 Yamaha YZ125 MONSTER Service and Repair Manual

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Part number LIT-11626-38-35 is the Yamaha service manual covering the 2025 YZ125 Monster, model code YZ125SME. The standard 2025 YZ125 shares the same book.

Servicing is identical enough between the two that the factory published once and noted the differences in place, so nothing here is generic or borrowed. Maintenance intervals, tightening torques, clearances and service limits are the ones specified for this machine, and the procedures follow the sequence Yamaha's technicians were trained to use.

Chapters take in engine disassembly and assembly, chassis and suspension work, the fuel and ignition systems, and the electrical side with a full wiring diagram. Confirm YZ125SME on the frame label before ordering. Each YZ125 model year carries a distinct part number, so the code is the quickest way to be sure the manual and the bike match.

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