2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 231Get this manual
CLUTCH SYSTEM 4Line up boss spline and push helix down until it engages the splines 12" to 34"While holding downward pressure on helix, wind moveable sheave counterclockwise approximately 13 turn (120)Push helix into place and install snap ring