2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 226Get this manual
CLUTCHING Clutch Disassembly 1Using permanent marker, mark the cover, spider, and moveable and stationary sheaves for reference,
and remove cover plate3Inspect cover bushing (A)The outer cover bushing is manufactured with Teflon coatingWear is determined
by the amount of Teflon remaining on the bushing 5Remove and inspect the clutch springSee "Drive Clutch Spring Specifications"
for spring inspection Cover Bushing Inspection: Replace the cover bushing if more brass than Teflon is visible on the bushingRefer