Service manual LIT-11616-XV-00 closes its year range with the 2000 models, and the V Star Custom of that season is code XVS650M.
Along with the Custom, Yamaha covered the V Star Classic in the same book, which is worth knowing if you own both or are buying parts that cross between them. The 1998, 1999 and 2000 machines are all inside.
The manual takes you from the maintenance schedule through to crankcase splitting. Valve clearance, carburetor adjustment and fuel system service sit in the early chapters. The engine section states every clearance and service limit, so a measurement tells you whether to reuse or replace. Chassis coverage runs to wheels, brakes, fork oil and seals, rear suspension and steering-head bearings. The electrical chapter tests circuits against factory values and reproduces the wiring diagrams in full.
Verify XVS650M, then order by part number.
