2004 Polaris Touring Service Manual, Page 211Get this manual
SUSPENSION Compression Damping Adjustable Shocks
Snowmobiles equipped with the Indy Select or Ryde FX shocks allow the driver to make adjustments to the compression valving by turning the screw located near the base of the shock
Adjustment
Locate the adjustment screw near the base of the shockNOTE: This adjustment is easiest to make with the machine tipped on its sideWARNING