2025 Yamaha YFZ50 Service and Repair Manual

Small machines still need real service information, and the YFZ50 has it. The 2025 unit is built as model code YFZ05YYXSG, and Yamaha documents it under part number LIT-11616-32-04.

One book handles the YFZ50 from 2019 through 2026. For a youth quad that spends its life being adjusted for a growing rider, that continuity matters: the chain and sprocket work, the throttle limiter setting, the brake adjustment and the carburettor service read the same whichever season your machine left the line.

Inside, procedures are laid out in the factory's order of operations, with the specified torque for each fastener and the clearances used at assembly. Electrical work is supported by wiring diagrams, and the troubleshooting material starts from symptoms a parent or mechanic would notice, such as a hard start or a loss of drive.

Check YFZ05YYXSG against your frame sticker before ordering parts against these pages.