2003 Quest 50 / DS 50 2-strokes Parts Catalog, Page 8Get this manual
166A-02 CYLINDER,CYLINDER HEAD 166A-02 CAME, PISTON 10 11 12 13 14 15 16 17 A13000116000 A13321116000 A13381104000 A96200162212 A13201104000 A13311116000 A90471104000 A9610062040 A9650020428 A9650020306 A13316116000 A13100116000 A13111104000 A13011116000 A13115104000 A96200101412 A941011319005 Crankshaft Ass'y Left Crank Crank Pin Needle Bearing (16 22 12) Crank Connecting Rod R.HCrank Semicycle Key (3 13) Radial Ball Bearing (6204C3) Oil Seal (20 4243 89) Oil Seal (20x 3033 6)Left Crank Collar (15 20 12) Piston Piston Pin (7 10 33) Piston Ring Set Piston Pin Clip (1.2 12) Needle Bearing (10 14 12.5) Plain Washer (13 19 0.5)