1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 113Get this manual
ENGINE ASSEMBLY and ADJUSTMENT CYLINDER HEAD, CYLINDER AND PISTON 1Install: Bearing (D Piston Piston pin (3) Piston pin clip (4) NOTE: Apply 2-stroke oil to the piston pin, bearing, piston ring grooves and piston skirt areasThearrow on the piston must point the front of the engineBefore installing the piston pin clip, cover the crankcase with clean towel or rag so you will not accidentally drop the pin clip and material into the crankcase