2023 Yamaha YZ450FX Service and Repair Manual

For the 2023 YZ450FX Yamaha published LIT-11626-36-38, written for the model coded YZ450FXP and covering that year by itself.

A cross-country four-stroke rewards careful maintenance, and the engine chapters give the figures for it: valve clearance measurement with shim selection, camshaft timing, cylinder head and piston service against stated wear limits, clutch replacement, and a crankcase rebuild with transmission work. Injection and ignition sections carry the factory test values.

Chassis coverage documents fork and rear shock disassembly with oil quantities, brake and wheel service, bearing replacement, steering head adjustment, and the torque tables for frame and engine hardware. Wiring diagrams with diagnostic sequences complete the book.

Confirm YZ450FXP on the frame label before ordering. With that code and LIT-11626-36-38 in hand, there is no question which machine the procedures apply to.