2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 149Get this manual
FSFST Engine Piston Assembly
UPPER COMPRESSION RING
MIDDLE COMPRESSION RING
OIL CONTROL RING
PISTON PIN
BEARING SHELLS
CONNECTING ROD
STEP ONE: Ft.Lbs(10 Nm) STEP TWO: 15 Ft.Lbs(20 Nm) STEP THREE: TURN 90 APPLY ENGINE OIL TO THREADS