2007 Arctic Cat Four-Stroke Factory Service Manual, Page 84Get this manual
15Install the compression rings so the letter on the top surface of each ring faces the dome of the pistonRotate the rings until the ring end gaps are no less than 90 from one another MD1583
17Remove the protective hoses from the connecting rod studs; then seat the connecting rods over the connecting rod journalsATV-1024
! CAUTION
Incorrect installation of the piston rings will result in engine damage
16Install the connecting rod bearings into the connecting rods; then using ring compressor and soft dowel (wood or plastic), lubricate each piston and cylinder thoroughly with engine oil and slide each piston into the cylinder and over the connecting rod journalsMake sure the arrow on the top of the piston is facing toward the timing chain end of the crankcase