The 2024 WR450F carries code WR450FR1, and its service publication is LIT-11626-37-57.
Nothing in a factory manual is written to persuade. It states the order of removal, the figure to tighten to, the clearance to measure against and the test to perform, and that is what makes it the right book for a machine you intend to keep in specification. Engine and gearbox overhaul, valve clearance and shim selection, fork and shock service, brake work, fuel injection diagnosis and complete wiring diagrams are all present, along with the maintenance schedule at Yamaha's intervals.
One step before ordering: read the model code off the frame plate and make sure it says WR450FR1.
Capacities, lubricant grades and adjustment ranges are listed with the specifications, and troubleshooting works from the symptom an owner reports back to the measurement that settles it.
