The 2000 TTR225 is code TTR225M, and Yamaha documented it under part number LIT-11616-TT-26. One reference serves the 1999 through 2002 years plus 2004, and covers the TT-R225 and TTR225L alongside.
Consolidation like that is a clue to the machine itself. Yamaha changed little year to year, so a torque figure or a clearance quoted for one season generally holds for the next, and the text says so where it does not.
The material is the dealer original rather than a summary. Expect inspection limits, assembly order, fuel and ignition specifications, brake and suspension procedures, and Yamaha's own wiring diagrams, with fastener torque given where the fastener is discussed.
Check the part number against anything you already own, and the TTR225M code against your frame.
