2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 289Get this manual
TRANSMISSION 6Install the output gear assemblyBe sure to properly mesh the snorkel shaft bevel gear with the output bevel gearInstall the torx screws (2) to secure the output gear assembly into placeTorque screws to 8-12 ft.lbs(11-17 Nm)NOTICE!It is important to set zero lash between the output gear and the snorkel shaft gearIf there is binding or excess lash, tighten or loosen the snorkel shaft until there is zero lash Check the output shaft gear backlash again by feelIf the output shaft lash appears to be too tight, rotate the snorkel shaft counterclockwise to the next notch (or 8th) notch
Notches
Count notches of snorkel tube through lock screw hole