2004 Polaris Pro X Factory Service Manual, Page 108Get this manual
CLUTCHES Belt to Sheave Clearance Inspection NOTE: The distance between the belt and the moveable sheave on the drive clutch is very importantThis distance controls the starting ratio (lowest starting ratio is most preferable) and the position of the clutch weight to engine RPMThe distance between the belt and moveable sheave should be as close to .020 (.5 mm) as possible without creating drag on the belt, when positioned around the hub at the bottom of the sheavesForce belt to one side
1Force belt to one side of drive clutchNOTE: Measure total belt to sheave clearance with new belt2Install feeler gage between other sheave and beltBelt to Sheave Clearance .020 .015 (.5 mm .4mm)
Belt to Sheave Clearance Adjustment
Belt to sheave clearance can be adjusted in two ways1Try several new belts to achieve proper clearance2Can add or remove shims from under the spider to increase or decrease belt to sheave clearanceSee Spider indexing on page 4.17