2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 137Get this manual
CLUTCH 7Remove moveable sheave and note the number of spacer washersOne spacer must remain between the sheaves when adjusting belt deflection1Install moveable sheave with spacer washersImportant: At least one spacer washer must be installedTeflont 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
Inspect bushings for wear