1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 114Get this manual
ENGINE ASSEMBLY and ADJUSTMENT NOTE: Be sure to check the manufactuer's marks or numbers stamped on the rings are on the top side of the ringsMake sure the ring ends (Tt are properly fitted around the ring locating pins in the piston groovesBefore installing the cylinder, apply liberal coating of 2-stroke oil to the piston ringsInstall the cylinder with one hand while compressing the piston rings with the other hand