The most reasonably priced component used on the Xr250r 1982 (c) E-7 Clutch is the Bolt,hex.,6x25.
Some items from this specific schematic: Roller, 2x13.8, Outer Comp,clutch, B/brg.rad.n/com., Disk,friction (mca).
twenty-five components are shown in this Xr250r 1982 (c) E-7 Clutch exploded diagram.