2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 213Get this manual
DRIVEN CLUTCH ASSEMBLY
1Install moveable sheave with spacer washersImportant: At least one spacer washer must be installedTeflon bushings are self-lubricatingDo not apply oil or grease to the bushings2Install spring, inserting spring tab into proper hole in moveable sheave3Insert spring tab into proper hole in helixSee specifications at the beginning of this sectionThe driven clutch, helixmoveable assembly has several different spring locations which affect clutch shifting and RPMsThe greatest amount of spring tension will raise engine RPMs during clutch upshift and allow quicker backshift or downshift when pulling or negotiating hill, for exampleThe least amount of tension will create slower downshift and harder upshift