2007 Arctic Cat Four-Stroke Factory Service Manual, Page 312Get this manual
5Inspect spring for distortion, crystallization, or breaks6Inspect the roller plate, rollers, pins, and spring mounting holes for cracks, damage, or wear7Inspect the roller plate and movable sheave bearings for wearFor each respective bearing, measure the outside diameter of the shaft and the inside diameter of the bearingCompare the readingsClearance between the shaft and the respective bearing must not exceed 0.5 mm (0.020 inIf the clearance exceeds the specification, the bearing must be replaced
CLEANING AND INSPECTING
! NOTE: Whenever part is worn excessively, cracked, or damaged in any way, replacement is necessary