2025 Yamaha YZ250FX Service and Repair Manual

LIT-11626-38-51 is the 2025 YZ250FX service volume, written for the model coded YZ250FXS and dedicated to that single year.

Owners doing their own work get the full four-stroke sequence: valve clearance checking with shim selection, camshaft timing, cylinder head and piston service with the wear limits printed alongside, clutch replacement, and a crankcase rebuild including transmission work. Fuel injection and ignition sections carry the factory test values.

Chassis sections

• Fork and rear shock disassembly with oil quantity
• Brake, wheel and bearing service
• Steering head adjustment
• Torque tables for frame and engine hardware
• Wiring diagram and electrical fault charts

Fitment comes down to the frame label. Confirm YZ250FXS there before ordering, particularly on a used bike where parts from a neighbouring year may have been fitted along the way.